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String instruments, stringed instruments, or chordophones are
musical instrument A musical instrument is a device created or adapted to make musical sounds. In principle, any object that produces sound can be considered a musical instrument—it is through purpose that the object becomes a musical instrument. A person who pl ...
s that produce sound from vibrating strings when a performer plays or sounds the strings in some manner. Musicians play some string instruments by plucking the
strings String or strings may refer to: *String (structure), a long flexible structure made from threads twisted together, which is used to tie, bind, or hang other objects Arts, entertainment, and media Films * ''Strings'' (1991 film), a Canadian anim ...
with their fingers or a
plectrum A plectrum is a small flat tool used for plucking or strumming of a stringed instrument. For hand-held instruments such as guitars and mandolins, the plectrum is often called a pick and is held as a separate tool in the player's hand. In harpsic ...
—and others by hitting the strings with a light wooden hammer or by rubbing the strings with a bow. In some
keyboard Keyboard may refer to: Text input * Keyboard, part of a typewriter * Computer keyboard ** Keyboard layout, the software control of computer keyboards and their mapping ** Keyboard technology, computer keyboard hardware and firmware Music * Musi ...
instruments, such as the
harpsichord A harpsichord ( it, clavicembalo; french: clavecin; german: Cembalo; es, clavecín; pt, cravo; nl, klavecimbel; pl, klawesyn) is a musical instrument played by means of a keyboard. This activates a row of levers that turn a trigger mechanism ...
, the musician presses a key that plucks the string. Other musical instruments generate sound by striking the string. With bowed instruments, the player pulls a rosined horsehair bow across the strings, causing them to vibrate. With a
hurdy-gurdy The hurdy-gurdy is a string instrument that produces sound by a hand-crank-turned, rosined wheel rubbing against the strings. The wheel functions much like a violin bow, and single notes played on the instrument sound similar to those of a vio ...
, the musician cranks a wheel whose rosined edge touches the strings. Bowed instruments include the string section instruments of the
orchestra An orchestra (; ) is a large instrumental ensemble typical of classical music, which combines instruments from different families. There are typically four main sections of instruments: * bowed string instruments, such as the violin, viola, c ...
in
Western classical music Classical music generally refers to the art music of the Western world, considered to be distinct from Western folk music or popular music traditions. It is sometimes distinguished as Western classical music, as the term "classical music" also ...
(
violin The violin, sometimes known as a ''fiddle'', is a wooden chordophone (string instrument) in the violin family. Most violins have a hollow wooden body. It is the smallest and thus highest-pitched instrument (soprano) in the family in regular ...
,
viola The viola ( , also , ) is a string instrument that is bow (music), bowed, plucked, or played with varying techniques. Slightly larger than a violin, it has a lower and deeper sound. Since the 18th century, it has been the middle or alto voice of ...
,
cello The cello ( ; plural ''celli'' or ''cellos'') or violoncello ( ; ) is a Bow (music), bowed (sometimes pizzicato, plucked and occasionally col legno, hit) string instrument of the violin family. Its four strings are usually intonation (music), t ...
and
double bass The double bass (), also known simply as the bass () (or #Terminology, by other names), is the largest and lowest-pitched Bow (music), bowed (or plucked) string instrument in the modern orchestra, symphony orchestra (excluding unorthodox addit ...
) and a number of other instruments (e.g.,
viol The viol (), viola da gamba (), or informally gamba, is any one of a family of bowed, fretted, and stringed instruments with hollow wooden bodies and pegboxes where the tension on the strings can be increased or decreased to adjust the pitc ...
s and
gambas Gambas is the name of an object-oriented dialect of the BASIC programming language, as well as the integrated development environment that accompanies it. Designed to run on Linux and other Unix-like computer operating systems, its name is a re ...
used in
early music Early music generally comprises Medieval music (500–1400) and Renaissance music (1400–1600), but can also include Baroque music (1600–1750). Originating in Europe, early music is a broad musical era for the beginning of Western classical m ...
from the
Baroque music Baroque music ( or ) refers to the period or dominant style of Western classical music composed from about 1600 to 1750. The Baroque style followed the Renaissance period, and was followed in turn by the Classical period after a short transiti ...
era and
fiddle A fiddle is a bowed string musical instrument, most often a violin. It is a colloquial term for the violin, used by players in all genres, including classical music. Although in many cases violins and fiddles are essentially synonymous, th ...
s used in many types of
folk music Folk music is a music genre that includes traditional folk music and the contemporary genre that evolved from the former during the 20th-century folk revival. Some types of folk music may be called world music. Traditional folk music has b ...
). All of the bowed string instruments can also be plucked with the fingers, a technique called "
pizzicato Pizzicato (, ; translated as "pinched", and sometimes roughly as "plucked") is a playing technique that involves plucking the strings of a string instrument. The exact technique varies somewhat depending on the type of instrument : * On bowed ...
". A wide variety of techniques are used to sound notes on the
electric guitar An electric guitar is a guitar that requires external amplification in order to be heard at typical performance volumes, unlike a standard acoustic guitar (however combinations of the two - a semi-acoustic guitar and an electric acoustic gui ...
, including plucking with the fingernails or a plectrum, strumming and even "
tapping Tapping is a playing technique that can be used on any stringed instrument, but which is most commonly used on guitar. The technique involves a string being fretted and set into vibration as part of a single motion. This is in contrast to stand ...
" on the fingerboard and using
feedback Feedback occurs when outputs of a system are routed back as inputs as part of a chain of cause-and-effect that forms a circuit or loop. The system can then be said to ''feed back'' into itself. The notion of cause-and-effect has to be handled ...
from a loud, distorted
guitar amplifier A guitar amplifier (or amp) is an electronic device or system that strengthens the electrical signal from a pickup on an electric guitar, bass guitar, or acoustic guitar so that it can produce sound through one or more loudspeakers, which a ...
to produce a sustained sound. Some string instruments are mainly plucked, such as the
harp The harp is a stringed musical instrument that has a number of individual strings running at an angle to its soundboard; the strings are plucked with the fingers. Harps can be made and played in various ways, standing or sitting, and in orche ...
and the
electric bass The bass guitar, electric bass or simply bass (), is the lowest-pitched member of the string family. It is a plucked string instrument similar in appearance and construction to an electric or an acoustic guitar, but with a longer neck The ...
. In the Hornbostel-Sachs scheme of
musical instrument classification In organology, the study of musical instruments, many methods of classifying instruments exist. Most methods are specific to a particular cultural group and were developed to serve that culture's musical needs. Culture-based classification method ...
, used in
organology Organology (from Ancient Greek () 'instrument' and (), 'the study of') is the science of musical instruments and their classifications. It embraces study of instruments' history, instruments used in different cultures, technical aspects of how i ...
, string instruments are called chordophones. Other examples include the
sitar The sitar ( or ; ) is a plucked stringed instrument, originating from the Indian subcontinent, used in Hindustani classical music. The instrument was invented in medieval India, flourished in the 18th century, and arrived at its present form in ...
,
rebab The ''rebab'' ( ar, ربابة, ''rabāba'', variously spelled ''rebap'', ''rubob'', ''rebeb'', ''rababa'', ''rabeba'', ''robab'', ''rubab'', ''rebob'', etc) is the name of several related string instruments that independently spread via I ...
,
banjo The banjo is a stringed instrument with a thin membrane stretched over a frame or cavity to form a resonator. The membrane is typically circular, and usually made of plastic, or occasionally animal skin. Early forms of the instrument were fashi ...
,
mandolin A mandolin ( it, mandolino ; literally "small mandola") is a stringed musical instrument in the lute family and is generally plucked with a pick. It most commonly has four courses of doubled strings tuned in unison, thus giving a total of 8 ...
,
ukulele The ukulele ( ; from haw, ukulele , approximately ), also called Uke, is a member of the lute family of instruments of Portuguese origin and popularized in Hawaii. It generally employs four nylon strings. The tone and volume of the instrumen ...
, and
bouzouki The bouzouki (, also ; el, μπουζούκι ; alt. pl. ''bouzoukia'', from Greek ), also spelled buzuki or buzuci, is a musical instrument popular in Greece. It is a member of the long-necked lute family, with a round body with a flat top and ...
. According to
Sachs Sachs is a German surname, meaning "man from Saxony". Sachs is a common surname among Ashkenazi Jews from Saxony, in the United States sometimes adopted in the variant Zaks, supposedly in reference to the Hebrew phrase ''Zera Kodesh Shemo'' (ZaKS), ...
, } In most string instruments, the vibrations are transmitted to the body of the instrument, which often incorporates some sort of hollow or enclosed area. The body of the instrument also vibrates, along with the air inside it. The vibration of the body of the instrument and the enclosed hollow or chamber make the vibration of the string more audible to the performer and audience. The body of most string instruments is hollow. Some, however—such as
electric guitar An electric guitar is a guitar that requires external amplification in order to be heard at typical performance volumes, unlike a standard acoustic guitar (however combinations of the two - a semi-acoustic guitar and an electric acoustic gui ...
and other instruments that rely on electronic amplification—may have a solid wood body.


Classification

In
musicology Musicology (from Greek μουσική ''mousikē'' 'music' and -λογια ''-logia'', 'domain of study') is the scholarly analysis and research-based study of music. Musicology departments traditionally belong to the humanities, although some mu ...
, string instruments are known as chordophones. It is one of the five main divisions of instruments in the Hornbostel-Sachs scheme of
musical instrument classification In organology, the study of musical instruments, many methods of classifying instruments exist. Most methods are specific to a particular cultural group and were developed to serve that culture's musical needs. Culture-based classification method ...
. Hornbostel-Sachs divides chordophones into two main groups: instruments without a
resonator A resonator is a device or system that exhibits resonance or resonant behavior. That is, it naturally oscillates with greater amplitude at some frequencies, called resonant frequencies, than at other frequencies. The oscillations in a resonator ...
as an integral part of the instrument (which have the classification number 31, also known as simple); and instruments with such a resonator (which have the classification number 32, also known as composite). Most western instruments fall into the second group, but the
piano The piano is a stringed keyboard instrument in which the strings are struck by wooden hammers that are coated with a softer material (modern hammers are covered with dense wool felt; some early pianos used leather). It is played using a keyboa ...
and
harpsichord A harpsichord ( it, clavicembalo; french: clavecin; german: Cembalo; es, clavecín; pt, cravo; nl, klavecimbel; pl, klawesyn) is a musical instrument played by means of a keyboard. This activates a row of levers that turn a trigger mechanism ...
fall into the first. Hornbostel and Sachs' criterion for determining which sub-group an instrument falls into is that if the resonator can be removed without destroying the instrument, then it is classified as 31. The idea that the piano's casing, which acts as a resonator, could be removed without destroying the instrument, may seem odd, but if the action and strings of the piano were taken out of its box, it could still be played. This is not true of the violin, because the string passes over a bridge located on the resonator box, so removing the resonator would mean the strings had no tension. Curt Sachs also broke chordophones into four basic subcategories, "zithers, lutes, lyres and harps." *
Zithers Zithers (; , from the Greek word ''cithara'') are a class of stringed instruments. Historically, the name has been applied to any instrument of the psaltery family, or to an instrument consisting of many strings stretched across a thin, flat bo ...
include ''stick zithers'' such as the
musical bow The musical bow (bowstring or string bow, a subset of bar zithers) is a simple string instrument used by a number of South African peoples, which is also found in the Americas via slave trade. It consists of a flexible, usually wooden, stick 1. ...
, ''
tube zithers Tube or tubes may refer to: * ''Tube'' (2003 film), a 2003 Korean film * ''The Tube'' (TV series), a music related TV series by Channel 4 in the United Kingdom * "Tubes" (Peter Dale), performer on the Soccer AM television show * Tube (band), a ...
'' with a tube as the resonator such as the
valiha The valiha is a tube zither from Madagascar made from a species of local bamboo; it is considered the " national instrument" of Madagascar. The term is also used to describe a number of related zithers of differing shapes and materials. T ...
, raft zithers in which tube zithers are tied into a single "raft," ''board zithers'' including
clavichord The clavichord is a stringed rectangular keyboard instrument that was used largely in the Late Middle Ages, through the Renaissance, Baroque and Classical eras. Historically, it was mostly used as a practice instrument and as an aid to compositi ...
and
piano The piano is a stringed keyboard instrument in which the strings are struck by wooden hammers that are coated with a softer material (modern hammers are covered with dense wool felt; some early pianos used leather). It is played using a keyboa ...
and
dulcimer The word dulcimer refers to two families of musical string instruments. Hammered dulcimers The word ''dulcimer'' originally referred to a trapezoidal zither similar to a psaltery whose many strings are struck by handheld "hammers". Variants of ...
, and ''long zithers'' (described as combination of half-tube and board zithers) including Se and
Guzheng The zheng () or gu zheng (), is a Chinese plucked zither. The modern guzheng commonly has 21, 25, or 26 strings, is long, and is tuned in a major pentatonic scale. It has a large, resonant soundboard made from ''Paulownia'' wood. Other co ...
families. *
Lutes A lute ( or ) is any plucked string instrument with a neck and a deep round back enclosing a hollow cavity, usually with a sound hole or opening in the body. It may be either fretted or unfretted. More specifically, the term "lute" can re ...
are stringed musical instruments that include a body and "a neck which serves both as a handle and as a means of stretching the strings beyond the body." The lute family includes not only ''short-necked plucked lutes'' such as the
lute A lute ( or ) is any plucked string instrument with a neck and a deep round back enclosing a hollow cavity, usually with a sound hole or opening in the body. It may be either fretted or unfretted. More specifically, the term "lute" can ref ...
,
oud , image=File:oud2.jpg , image_capt=Syrian oud made by Abdo Nahat in 1921 , background= , classification= * String instruments *Necked bowl lutes , hornbostel_sachs=321.321-6 , hornbostel_sachs_desc=Composite chordophone sounded with a plectrum , ...
,
pipa The pipa, pípá, or p'i-p'a () is a traditional Chinese musical instrument, belonging to the plucked category of instruments. Sometimes called the "Chinese lute", the instrument has a pear-shaped wooden body with a varying number of frets rang ...
,
guitar The guitar is a fretted musical instrument that typically has six strings. It is usually held flat against the player's body and played by strumming or plucking the strings with the dominant hand, while simultaneously pressing selected stri ...
,
citole The citole was a string musical instrument, closely associated with the medieval fiddles (viol, vielle, gigue) and commonly used from 1200–1350."CITOLE, also spelled Systole, Cythole, Gytolle, &c. (probably a Fr. diminutive form of cithar ...
,
gittern The gittern was a relatively small gut-strung, round-backed instrument that first appears in literature and pictorial representation during the 13th century in Western Europe (Iberian Peninsula, Italy, France, England). It is usually depicted pl ...
,
mandore Mandore is a suburb Historical town located 9 km north of Jodhpur city, in the Indian state of Rajasthan. History Mandore is an ancient town, and was the seat of the Pratiharas of Mandavyapura, who ruled the region in the 6th century CE ...
, rubab, and gambus and ''long-necked plucked lutes'' such as the tanbura,
swarabat The Swarabat, Swarbat or Swaragat is a rare plucked string instrument of the classical Carnatic music genre of South India. It belongs to the chordophone, lute family of musical instruments, and is closely related to the ''veena'' and ''yazh'' i ...
,
bağlama The ''bağlama'' or ''saz'' is a family of plucked string instruments, long-necked lutes used in Ottoman classical music, Turkish folk music, Turkish Arabesque music, Azerbaijani music, Kurdish music, Armenian music and in parts of Syria, Iraq ...
,
bouzouki The bouzouki (, also ; el, μπουζούκι ; alt. pl. ''bouzoukia'', from Greek ), also spelled buzuki or buzuci, is a musical instrument popular in Greece. It is a member of the long-necked lute family, with a round body with a flat top and ...
,
veena The ''veena'', also spelled ''vina'' ( sa, वीणा IAST: vīṇā), comprises various chordophone instruments from the Indian subcontinent. Ancient musical instruments evolved into many variations, such as lutes, zithers and arched harps.< ...
,
theorbo The theorbo is a plucked string instrument of the lute family, with an extended neck and a second pegbox. Like a lute, a theorbo has a curved-back sound box (a hollow box) with a wooden top, typically with a sound hole, and a neck extending ou ...
,
archlute The archlute ( es, archilaúd, it, arciliuto, german: Erzlaute) is a European plucked string instrument developed around 1600 as a compromise between the very large theorbo, the size and re-entrant tuning of which made for difficulties in the p ...
,
pandura The pandura ( grc, πανδοῦρα, ''pandoura'') or pandore, an ancient string instrument, belonged in the broad class of the lute and guitar instruments. Akkadians played similar instruments from the 3rd millennium BC. Ancient Greek artwork d ...
,
sitar The sitar ( or ; ) is a plucked stringed instrument, originating from the Indian subcontinent, used in Hindustani classical music. The instrument was invented in medieval India, flourished in the 18th century, and arrived at its present form in ...
,
setar A setar ( fa, سه‌تار, ) is a stringed instrument, a type of lute used in Persian traditional music, played solo or accompanying voice. It is a member of the tanbur family of long-necked lutes with a range of more than two and a half octa ...
, but also ''bowed instruments'' such as the Yaylı tambur,
rebab The ''rebab'' ( ar, ربابة, ''rabāba'', variously spelled ''rebap'', ''rubob'', ''rebeb'', ''rababa'', ''rabeba'', ''robab'', ''rubab'', ''rebob'', etc) is the name of several related string instruments that independently spread via I ...
,
erhu The ''erhu'' (; ) is a Chinese two-stringed bowed musical instrument, more specifically a spike fiddle, which may also be called a ''Southern Fiddle'', and is sometimes known in the Western world as the ''Chinese violin'' or a ''Chinese two-s ...
, and entire family of
viols The viol (), viola da gamba (), or informally gamba, is any one of a family of bowed, fretted, and stringed instruments with hollow wooden bodies and pegboxes where the tension on the strings can be increased or decreased to adjust the pitc ...
and
violins The violin, sometimes known as a ''fiddle'', is a wooden chordophone (string instrument) in the violin family. Most violins have a hollow wooden body. It is the smallest and thus highest-pitched instrument (soprano) in the family in regular ...
. * The
lyre The lyre () is a stringed musical instrument that is classified by Hornbostel–Sachs as a member of the lute-family of instruments. In organology, a lyre is considered a yoke lute, since it is a lute in which the strings are attached to a yoke ...
has two arms, which have a "yoke" or crossbar connecting them, and strings between the crossbar and the soundboard. Sachs divided this into the ''box lyre'' such as the Greek kithara and the ''bowl lyre'' which used a bowl on its side with skin soundboard. * The
harp The harp is a stringed musical instrument that has a number of individual strings running at an angle to its soundboard; the strings are plucked with the fingers. Harps can be made and played in various ways, standing or sitting, and in orche ...
which has strings vertical to the soundboard.


Earliest string instruments

Dating to around c. 13,000 BC, a cave painting in the
Trois Frères ''Trois'' is a 2000 erotic thriller film directed by Rob Hardy and produced by William Packer. It stars Gary Dourdan, Kenya Moore and Gretchen Palmer. The film was given a limited theatrical release and was one of the years highest grossing Afri ...
cave in France depicts what some believe is a
musical bow The musical bow (bowstring or string bow, a subset of bar zithers) is a simple string instrument used by a number of South African peoples, which is also found in the Americas via slave trade. It consists of a flexible, usually wooden, stick 1. ...
, a hunting bow used as a single-stringed musical instrument. From the musical bow, families of stringed instruments developed; since each string played a single note, adding strings added new notes, creating bow harps,
harps The High Accuracy Radial Velocity Planet Searcher (HARPS) is a high-precision echelle planet-finding spectrograph installed in 2002 on the ESO's 3.6m telescope at La Silla Observatory in Chile. The first light was achieved in February 2003. H ...
and
lyres Yoke lutes, commonly called lyres, are a class of string instruments, subfamily of lutes, indicated with the code 321.2 in the Hornbostel–Sachs classification. Description Yoke lutes are defined as instruments with one or more strings, arrange ...
. In turn, this led to being able to play dyads and
chords Chord may refer to: * Chord (music), an aggregate of musical pitches sounded simultaneously ** Guitar chord a chord played on a guitar, which has a particular tuning * Chord (geometry), a line segment joining two points on a curve * Chord (as ...
. Another innovation occurred when the bow harp was straightened out and a
bridge A bridge is a structure built to span a physical obstacle (such as a body of water, valley, road, or rail) without blocking the way underneath. It is constructed for the purpose of providing passage over the obstacle, which is usually somethi ...
used to lift the strings off the stick-neck, creating the lute. This picture of musical bow to harp bow is theory and has been contested. In 1965 Franz Jahnel wrote his criticism stating that the early ancestors of plucked instruments are not currently known. He felt that the harp bow was a long cry from the sophistication of the civilizations of western Asia in 4000 BC that took the primitive technology and created "technically and artistically well-made harps, lyres, citharas, and lutes." Archaeological digs have identified some of the earliest stringed instruments in
Ancient Mesopotamia The history of Mesopotamia ranges from the earliest human occupation in the Paleolithic period up to Late antiquity. This history is pieced together from evidence retrieved from archaeological excavations and, after the introduction of writing i ...
n sites, like the
lyres of Ur The Lyres of Ur or Harps of Ur are a group of four stringed instruments excavated in a fragmentary condition at the Royal Cemetery of Ur in modern Iraq from 1922 onwards. They date back to the Early Dynastic III Period of Mesopotamia, between a ...
, which include artifacts over three thousand years old. The development of
lyre The lyre () is a stringed musical instrument that is classified by Hornbostel–Sachs as a member of the lute-family of instruments. In organology, a lyre is considered a yoke lute, since it is a lute in which the strings are attached to a yoke ...
instruments required the
technology Technology is the application of knowledge to reach practical goals in a specifiable and reproducible way. The word ''technology'' may also mean the product of such an endeavor. The use of technology is widely prevalent in medicine, science, ...
to create a tuning mechanism to tighten and loosen the string tension. Lyres with wooden bodies and strings used for plucking or playing with a bow represent key instruments that point towards later harps and violin-type instruments; moreover, Indian instruments from 500 BC have been discovered with anything from 7 to 21 strings.


Lutes

:''See: History of lute-family instruments'' Musicologists have put forth examples of that 4th-century BC technology, looking at engraved images that have survived. The earliest image showing a lute-like instrument came from
Mesopotamia Mesopotamia ''Mesopotamíā''; ar, بِلَاد ٱلرَّافِدَيْن or ; syc, ܐܪܡ ܢܗܪ̈ܝܢ, or , ) is a historical region of Western Asia situated within the Tigris–Euphrates river system, in the northern part of the F ...
prior to 3000 BC. A
cylinder seal A cylinder seal is a small round cylinder, typically about one inch (2 to 3 cm) in length, engraved with written characters or figurative scenes or both, used in ancient times to roll an impression onto a two-dimensional surface, generally ...
from c. 3100 BC or earlier (now in the possession of the British Museum) shows what is thought to be a woman playing a stick lute. From the surviving images, theorists have categorized the Mesopotamian lutes, showing that they developed into a long variety and a short. The line of long lutes may have developed into the
tambur The ''tambur'' (spelled in keeping with TDK conventions) is a fretted string instrument of Turkey and the former lands of the Ottoman Empire. Like the ney, the armudi (lit. pear-shaped) kemençe and the kudüm, it constitutes one of the fou ...
s and
pandura The pandura ( grc, πανδοῦρα, ''pandoura'') or pandore, an ancient string instrument, belonged in the broad class of the lute and guitar instruments. Akkadians played similar instruments from the 3rd millennium BC. Ancient Greek artwork d ...
. The line of short lutes was further developed to the east of Mesopotamia, in
Bactria Bactria (; Bactrian: , ), or Bactriana, was an ancient region in Central Asia in Amu Darya's middle stream, stretching north of the Hindu Kush, west of the Pamirs and south of the Gissar range, covering the northern part of Afghanistan, southwe ...
,
Gandhara Gandhāra is the name of an ancient region located in the northwestern region of the Indian subcontinent, more precisely in present-day north-west Pakistan and parts of south-east Afghanistan. The region centered around the Peshawar Vall ...
, and Northwest India, and shown in sculpture from the 2nd century BC through the 4th or 5th centuries AD. Views 3 & 4 show a musician playing a 4th- to 5th-century lute-like instrument, excavated in Gandhara, and part of a Los Angeles County Art Museum collection of ''Five Celestial Musicians'' During the
medieval era In the history of Europe, the Middle Ages or medieval period lasted approximately from the late 5th to the late 15th centuries, similar to the post-classical period of global history. It began with the fall of the Western Roman Empire a ...
, instrument development varied in different regions of the world. Middle Eastern rebecs represented breakthroughs in terms of shape and strings, with a half a pear shape using three strings. Early versions of the violin and fiddle, by comparison, emerged in Europe through instruments such as the
gittern The gittern was a relatively small gut-strung, round-backed instrument that first appears in literature and pictorial representation during the 13th century in Western Europe (Iberian Peninsula, Italy, France, England). It is usually depicted pl ...
, a four-stringed precursor to the guitar, and basic
lute A lute ( or ) is any plucked string instrument with a neck and a deep round back enclosing a hollow cavity, usually with a sound hole or opening in the body. It may be either fretted or unfretted. More specifically, the term "lute" can ref ...
s. These instruments typically used catgut (animal intestine) and other materials, including silk, for their strings.


Renaissance to modern

String instrument design was refined during the
Renaissance The Renaissance ( , ) , from , with the same meanings. is a period in European history marking the transition from the Middle Ages to modernity and covering the 15th and 16th centuries, characterized by an effort to revive and surpass ideas ...
and into the
Baroque period The Baroque (, ; ) is a style of architecture, music, dance, painting, sculpture, poetry, and other arts that flourished in Europe from the early 17th century until the 1750s. In the territories of the Spanish and Portuguese empires including t ...
(1600–1750) of musical history.
Violins The violin, sometimes known as a ''fiddle'', is a wooden chordophone (string instrument) in the violin family. Most violins have a hollow wooden body. It is the smallest and thus highest-pitched instrument (soprano) in the family in regular ...
and
guitars The guitar is a fretted musical instrument that typically has six strings. It is usually held flat against the player's body and played by strumming or plucking the strings with the dominant hand, while simultaneously pressing selected stri ...
became more consistent in design and were roughly similar to acoustic guitars of the 2000s. The violins of the
Renaissance The Renaissance ( , ) , from , with the same meanings. is a period in European history marking the transition from the Middle Ages to modernity and covering the 15th and 16th centuries, characterized by an effort to revive and surpass ideas ...
featured intricate woodwork and stringing, while more elaborate bass instruments such as the bandora were produced alongside quill-plucked
cittern The cittern or cithren ( Fr. ''cistre'', It. ''cetra'', Ger. ''Cister,'' Sp. ''cistro, cedra, cítola'') is a stringed instrument dating from the Renaissance. Modern scholars debate its exact history, but it is generally accepted that it is d ...
s, and Spanish body guitars. In the 19th century, string instruments were made more widely available through mass production, with wood string instruments a key part of orchestras – cellos, violas, and upright basses, for example, were now standard instruments for chamber ensembles and smaller orchestras. At the same time, the 19th-century guitar became more typically associated with six-string models, rather than traditional five-string versions. Major changes to string instruments in the 20th century primarily involved innovations in electronic
instrument amplification An instrument amplifier is an electronic device that converts the often barely audible or purely electronic signal of a musical instrument into a larger electronic signal to feed to a loudspeaker. An instrument amplifier is used with musical inst ...
and electronic music – electric violins were available by the 1920s and were an important part of emerging jazz music trends in the United States. The
acoustic guitar An acoustic guitar is a musical instrument in the string family. When a string is plucked its vibration is transmitted from the bridge, resonating throughout the top of the guitar. It is also transmitted to the side and back of the instrument, ...
was widely used in
blues Blues is a music genre and musical form which originated in the Deep South of the United States around the 1860s. Blues incorporated spirituals, work songs, field hollers, shouts, chants, and rhymed simple narrative ballads from the Afr ...
and
jazz Jazz is a music genre that originated in the African-American communities of New Orleans, Louisiana in the late 19th and early 20th centuries, with its roots in blues and ragtime. Since the 1920s Jazz Age, it has been recognized as a major ...
, but as an acoustic instrument, it was not loud enough to be a solo instrument, so these genres mostly used it as an
accompaniment Accompaniment is the musical part which provides the rhythmic and/or harmonic support for the melody or main themes of a song or instrumental piece. There are many different styles and types of accompaniment in different genres and styles ...
rhythm section A rhythm section is a group of musicians within a music ensemble or band that provides the underlying rhythm, harmony and pulse of the accompaniment, providing a rhythmic and harmonic reference and "beat" for the rest of the band. The rhythm sec ...
instrument. In
big band A big band or jazz orchestra is a type of musical ensemble of jazz music that usually consists of ten or more musicians with four sections: saxophones, trumpets, trombones, and a rhythm section. Big bands originated during the early 1910s an ...
s of the 1920s, the
acoustic guitar An acoustic guitar is a musical instrument in the string family. When a string is plucked its vibration is transmitted from the bridge, resonating throughout the top of the guitar. It is also transmitted to the side and back of the instrument, ...
played backing chords, but it was not loud enough to play solos like the
saxophone The saxophone (often referred to colloquially as the sax) is a type of single-reed woodwind instrument with a conical body, usually made of brass. As with all single-reed instruments, sound is produced when a reed on a mouthpiece vibrates to pr ...
and
trumpet The trumpet is a brass instrument commonly used in classical and jazz ensembles. The trumpet group ranges from the piccolo trumpet—with the highest register in the brass family—to the bass trumpet, pitched one octave below the standard ...
. The development of guitar amplifiers, which contained a
power amplifier An audio power amplifier (or power amp) is an electronic amplifier that amplifies low-power electronic audio signals, such as the signal from a radio receiver or an electric guitar pickup, to a level that is high enough for driving loudspea ...
and a
loudspeaker A loudspeaker (commonly referred to as a speaker or speaker driver) is an electroacoustic transducer that converts an electrical audio signal into a corresponding sound. A ''speaker system'', also often simply referred to as a "speaker" or " ...
in a wooden cabinet, let
jazz guitar Jazz guitar may refer to either a type of electric guitar or a guitar playing style in jazz, using electric amplification to increase the volume of acoustic guitars. In the early 1930s, jazz musicians sought to amplify their sound to be hear ...
ists play solos and be heard over a big band. The development of the
electric guitar An electric guitar is a guitar that requires external amplification in order to be heard at typical performance volumes, unlike a standard acoustic guitar (however combinations of the two - a semi-acoustic guitar and an electric acoustic gui ...
provided guitarists with an instrument that was built to connect to guitar amplifiers. Electric guitars have magnetic pickups, volume control knobs and an output jack. In the 1960s, larger, more powerful guitar amplifiers were developed, called "stacks". These powerful amplifiers enabled guitarists to perform in rock bands that played in large venues such as stadiums and outdoor music festivals (e.g.,
Woodstock Music Festival Woodstock Music and Art Fair, commonly referred to as Woodstock, was a music festival held during August 15–18, 1969, on Max Yasgur's dairy farm in Bethel, New York, United States, southwest of the town of Woodstock. Billed as "an Aquari ...
). Along with the development of guitar amplifiers, a large range of electronic
effects unit An effects unit or effects pedal is an electronic device that alters the sound of a musical instrument or other audio source through audio signal processing. Common effects include distortion/overdrive, often used with electric guitar in el ...
s, many in small
stompbox A stomp box (or stompbox) is a percussion instrument consisting of a small box placed under the foot, which is tapped or stamped on rhythmically to produce a sound similar to that of a bass drum. A stomp box allows a performer such as a singe ...
pedals were introduced in the 1960s and 1970s, such as
fuzz pedal An effects unit or effects pedal is an electronic device that alters the sound of a musical instrument or other audio source through audio signal processing. Common effects include distortion/overdrive, often used with electric guitar in el ...
s,
flanger Flanging is an audio signal processing, audio effect produced by mixing two identical audio signal, signals together, one signal delayed by a small and (usually) gradually changing period, usually smaller than 20 milliseconds. This produces a s ...
s, and phasers enabling performers to create unique new sounds during the
psychedelic rock Psychedelic rock is a rock music Music genre, genre that is inspired, influenced, or representative of psychedelia, psychedelic culture, which is centered on perception-altering hallucinogenic drugs. The music incorporated new electronic sound ...
era. Breakthroughs in electric guitar and basses technologies and playing styles enabled major breakthroughs in pop and rock music in the 1960s and 1970s. The distinctive sound of the amplified
electric guitar An electric guitar is a guitar that requires external amplification in order to be heard at typical performance volumes, unlike a standard acoustic guitar (however combinations of the two - a semi-acoustic guitar and an electric acoustic gui ...
was the centerpiece of new genres of music such as
blues rock Blues rock is a fusion music genre that combines elements of blues and rock music. It is mostly an electric ensemble-style music with instrumentation similar to electric blues and rock (electric guitar, electric bass guitar, and drums, sometimes w ...
and
jazz-rock fusion Jazz fusion (also known as fusion and progressive jazz) is a music genre that developed in the late 1960s when musicians combined jazz harmony and improvisation with rock music, funk, and rhythm and blues. Electric guitars, amplifiers, and keyb ...
. The sonic power of the loudly amplified, highly distorted electric guitar was the key element of the early
heavy metal music Heavy metal (or simply metal) is a genre of rock music that developed in the late 1960s and early 1970s, largely in the United Kingdom and United States. With roots in blues rock, psychedelic rock and acid rock, heavy metal bands developed a ...
, with the distorted guitar being used in
lead guitar Lead guitar (also known as solo guitar) is a musical part for a guitar in which the guitarist plays melody lines, instrumental fill passages, guitar solos, and occasionally, some riffs and chords within a song structure. The lead is the featur ...
roles, and with
power chord A power chord (also fifth chord) is a colloquial name for a chord in guitar music, especially electric guitar, that consists of the root note and the fifth, as well as possibly octaves of those notes. Power chords are commonly played on am ...
s as a
rhythm guitar In music performances, rhythm guitar is a technique and role that performs a combination of two functions: to provide all or part of the rhythmic pulse in conjunction with other instruments from the rhythm section (e.g., drum kit, bass guitar ...
. The ongoing use of electronic amplification and effects units in string instruments, ranging from traditional instruments like the violin to the new electric guitar, added variety to
contemporary classical music Contemporary classical music is classical music composed close to the present day. At the beginning of the 21st century, it commonly referred to the post-1945 modern forms of post-tonal music after the death of Anton Webern, and included seria ...
performances, and enabled experimentation in the dynamic and timbre (tone colour) range of orchestras, bands, and solo performances.


Types of instruments


Construction

String instruments can be divided into three groups: ;
Lute A lute ( or ) is any plucked string instrument with a neck and a deep round back enclosing a hollow cavity, usually with a sound hole or opening in the body. It may be either fretted or unfretted. More specifically, the term "lute" can ref ...
s : Instruments that support the strings via a
neck The neck is the part of the body on many vertebrates that connects the head with the torso. The neck supports the weight of the head and protects the nerves that carry sensory and motor information from the brain down to the rest of the body. In ...
and a bout ("gourd"), for instance a guitar, violin, or saz ;
Harp The harp is a stringed musical instrument that has a number of individual strings running at an angle to its soundboard; the strings are plucked with the fingers. Harps can be made and played in various ways, standing or sitting, and in orche ...
s : Instruments that contain the strings within a frame ;
Zither Zithers (; , from the Greek word ''cithara'') are a class of stringed instruments. Historically, the name has been applied to any instrument of the psaltery family, or to an instrument consisting of many strings stretched across a thin, flat bo ...
s : Instruments that have the strings mounted on a body,
frame A frame is often a structural system that supports other components of a physical construction and/or steel frame that limits the construction's extent. Frame and FRAME may also refer to: Physical objects In building construction *Framing (con ...
or
tube Tube or tubes may refer to: * ''Tube'' (2003 film), a 2003 Korean film * ''The Tube'' (TV series), a music related TV series by Channel 4 in the United Kingdom * "Tubes" (Peter Dale), performer on the Soccer AM television show * Tube (band), a ...
, such as a
guqin The ''guqin'' (; ) is a plucked seven-string Chinese musical instrument. It has been played since ancient times, and has traditionally been favoured by scholars and literati as an instrument of great subtlety and refinement, as highlighted b ...
,
cimbalom The cimbalom (; ) or concert cimbalom is a type of chordophone composed of a large, trapezoidal box on legs with metal strings stretched across its top and a damping pedal underneath. It was designed and created by V. Josef Schunda in 1874 in ...
,
autoharp An autoharp or chord zither is a string instrument belonging to the zither family. It uses a series of bars individually configured to mute all strings other than those needed for the intended chord. The term ''autoharp'' was once a trademark of ...
,
harpsichord A harpsichord ( it, clavicembalo; french: clavecin; german: Cembalo; es, clavecín; pt, cravo; nl, klavecimbel; pl, klawesyn) is a musical instrument played by means of a keyboard. This activates a row of levers that turn a trigger mechanism ...
,
piano The piano is a stringed keyboard instrument in which the strings are struck by wooden hammers that are coated with a softer material (modern hammers are covered with dense wool felt; some early pianos used leather). It is played using a keyboa ...
, or
valiha The valiha is a tube zither from Madagascar made from a species of local bamboo; it is considered the " national instrument" of Madagascar. The term is also used to describe a number of related zithers of differing shapes and materials. T ...
It is also possible to divide the instruments into categories focused on how the instrument is played.


Playing techniques

All string instruments produce sound from one or more
vibrating string A vibration in a strings (music), string is a wave. Acoustic resonance#Resonance of a string, Resonance causes a vibrating string to produce a sound with constant frequency, i.e. constant pitch (music), pitch. If the length or tension of the strin ...
s, transferred to the air by the body of the instrument (or by a pickup in the case of electronically amplified instruments). They are usually categorised by the technique used to make the strings vibrate (or by the primary technique, in the case of instruments where more than one may apply.) The three most common techniques are plucking, bowing, and striking. An important difference between bowing and plucking is that in the former the phenomenon is periodic so that the overtones are kept in a strictly harmonic relationship to the fundamental.


Plucking

Plucking is a method of playing on instruments such as the
veena The ''veena'', also spelled ''vina'' ( sa, वीणा IAST: vīṇā), comprises various chordophone instruments from the Indian subcontinent. Ancient musical instruments evolved into many variations, such as lutes, zithers and arched harps.< ...
,
banjo The banjo is a stringed instrument with a thin membrane stretched over a frame or cavity to form a resonator. The membrane is typically circular, and usually made of plastic, or occasionally animal skin. Early forms of the instrument were fashi ...
,
ukulele The ukulele ( ; from haw, ukulele , approximately ), also called Uke, is a member of the lute family of instruments of Portuguese origin and popularized in Hawaii. It generally employs four nylon strings. The tone and volume of the instrumen ...
, guitar, harp,
lute A lute ( or ) is any plucked string instrument with a neck and a deep round back enclosing a hollow cavity, usually with a sound hole or opening in the body. It may be either fretted or unfretted. More specifically, the term "lute" can ref ...
,
mandolin A mandolin ( it, mandolino ; literally "small mandola") is a stringed musical instrument in the lute family and is generally plucked with a pick. It most commonly has four courses of doubled strings tuned in unison, thus giving a total of 8 ...
,
oud , image=File:oud2.jpg , image_capt=Syrian oud made by Abdo Nahat in 1921 , background= , classification= * String instruments *Necked bowl lutes , hornbostel_sachs=321.321-6 , hornbostel_sachs_desc=Composite chordophone sounded with a plectrum , ...
, and
sitar The sitar ( or ; ) is a plucked stringed instrument, originating from the Indian subcontinent, used in Hindustani classical music. The instrument was invented in medieval India, flourished in the 18th century, and arrived at its present form in ...
, using either a finger, thumb, or quills (now plastic plectra) to pluck the strings. Instruments normally played by bowing (see below) may also be plucked, a technique referred to by the Italian term ''
pizzicato Pizzicato (, ; translated as "pinched", and sometimes roughly as "plucked") is a playing technique that involves plucking the strings of a string instrument. The exact technique varies somewhat depending on the type of instrument : * On bowed ...
''.


Bowing

Bowing Bowing (also called stooping) is the act of lowering the torso and head as a social gesture in direction to another person or symbol. It is most prominent in Asian cultures but it is also typical of nobility and aristocracy in many European c ...
(Italian: ''arco'') is a method used in some string instruments, including the
violin The violin, sometimes known as a ''fiddle'', is a wooden chordophone (string instrument) in the violin family. Most violins have a hollow wooden body. It is the smallest and thus highest-pitched instrument (soprano) in the family in regular ...
,
viola The viola ( , also , ) is a string instrument that is bow (music), bowed, plucked, or played with varying techniques. Slightly larger than a violin, it has a lower and deeper sound. Since the 18th century, it has been the middle or alto voice of ...
,
cello The cello ( ; plural ''celli'' or ''cellos'') or violoncello ( ; ) is a Bow (music), bowed (sometimes pizzicato, plucked and occasionally col legno, hit) string instrument of the violin family. Its four strings are usually intonation (music), t ...
, and the
double bass The double bass (), also known simply as the bass () (or #Terminology, by other names), is the largest and lowest-pitched Bow (music), bowed (or plucked) string instrument in the modern orchestra, symphony orchestra (excluding unorthodox addit ...
(of the
violin family The violin family of musical instruments was developed in Italy in the 16th century. At the time the name of this family of instruments was viole da braccio which was used to distinguish them from the viol family (viole ''da gamba''). The standa ...
), and the old
viol The viol (), viola da gamba (), or informally gamba, is any one of a family of bowed, fretted, and stringed instruments with hollow wooden bodies and pegboxes where the tension on the strings can be increased or decreased to adjust the pitc ...
family. The bow consists of a stick with a "ribbon" of parallel horse tail hairs stretched between its ends. The hair is coated with
rosin Rosin (), also called colophony or Greek pitch ( la, links=no, pix graeca), is a solid form of resin obtained from pines and some other plants, mostly conifers, produced by heating fresh liquid resin to vaporize the volatile liquid terpene comp ...
so it can grip the string; moving the hair across a string causes a
stick-slip phenomenon The stick–slip phenomenon, also known as the slip–stick phenomenon or simply stick–slip, is the spontaneous jerking motion that can occur while two objects are sliding over each other. Cause Below is a simple, heuristic description of stick ...
, making the string
vibrate Vibration is a mechanical phenomenon whereby oscillations occur about an equilibrium point. The word comes from Latin ''vibrationem'' ("shaking, brandishing"). The oscillations may be periodic function, periodic, such as the motion of a pendulum ...
, and prompting the instrument to emit sound. Darker grades of rosin grip well in cool, dry climates, but may be too sticky in warmer, more humid weather. Violin and viola players generally use harder, lighter-colored rosin than players of lower-pitched instruments, who tend to favor darker, softer rosin. The
ravanahatha A ravanahatha (variant names: ''ravanhatta'', ''rawanhattha'', ''ravanastron'', ''ravana hasta veena'') is an ancient bowed, stringed instrument, used in India, Pakistan, Sri Lanka, and surrounding areas. It has been suggested as an ancestor of t ...
is one of the oldest string instruments. Ancestors of the modern bowed string instruments are the
rebab The ''rebab'' ( ar, ربابة, ''rabāba'', variously spelled ''rebap'', ''rubob'', ''rebeb'', ''rababa'', ''rabeba'', ''robab'', ''rubab'', ''rebob'', etc) is the name of several related string instruments that independently spread via I ...
of the Islamic Empires, the Persian
kamanche The kamancheh (also kamānche or kamāncha) ( fa, کمانچه, az, kamança, hy, Քամանչա, ku, کەمانچە ,kemançe) is an Iranian bowed string instrument used in Persian traditional music, Persian, Azerbaijani music, Azerbaijani ...
and the
Byzantine lira The Byzantine lyra or lira ( gr, λύρα) was a medieval bowed string musical instrument in the Byzantine (Eastern Roman) Empire. In its popular form, the lyra was a pear-shaped instrument with three to five strings, held upright and played by ...
. Other bowed instruments are the
rebec The rebec (sometimes rebecha, rebeckha, and other spellings, pronounced or ) is a bowed stringed instrument of the Medieval era and the early Renaissance. In its most common form, it has a narrow boat-shaped body and one to five strings. Origi ...
,
hardingfele A Hardanger fiddle ( no, hardingfele) is a traditional stringed instrument considered to be the national instrument of Norway. In modern designs, this type of fiddle is very similar to the violin, though with eight or nine strings (rather than fo ...
,
nyckelharpa A nyckelharpa (, "keyed fiddle", or literally "key harp", plural ) is the national musical instrument of Sweden. It is a string instrument or chordophone. Its keys are attached to tangents which, when a key is depressed, serve as frets to cha ...
,
kokyū The is a traditional Japanese string instrument, the only one played with a bow. A variant of the instrument also exists in Okinawa, called in Okinawan. The , like the , has its origins in Okinawa. Although it is similar to Chinese , it a ...
,
erhu The ''erhu'' (; ) is a Chinese two-stringed bowed musical instrument, more specifically a spike fiddle, which may also be called a ''Southern Fiddle'', and is sometimes known in the Western world as the ''Chinese violin'' or a ''Chinese two-s ...
,
igil The ''igil'' ( Tuvan: игил) is a two- stringed Tuvan musical instrument, played by bowing the strings. (It is called "ikili" in Western Mongolia.) The neck and lute-shaped sound box are usually made of a solid piece of pine or larch. The ...
,
sarangi The sārangī is a bowed, short-necked string instrument played in traditional music from South Asia – Punjabi folk music, Rajasthani folk music, and Boro folk music (there known as the ''serja'') – in Pakistan, India and Bangladesh. It is ...
,
morin khuur The ''morin khuur'' ( mn, морин хуур, morin khuur), also known as the horsehead fiddle, is a traditional Mongolian bowed stringed instrument. It is one of the most important musical instruments of the Mongol people, and is considered ...
, and
K'ni The k'ni, also known as ''mim'' in Cambodia, popularly known as a mouth violin is a mouth resonator fiddle, i.e. a fiddle-like instrument used by the Jarai people in Vietnam and Tampuan people in Cambodia. Etymology ''K'ni'' is the common word ...
. The
hurdy-gurdy The hurdy-gurdy is a string instrument that produces sound by a hand-crank-turned, rosined wheel rubbing against the strings. The wheel functions much like a violin bow, and single notes played on the instrument sound similar to those of a vio ...
is bowed by a wheel. Rarely, the guitar has been played with a bow (rather than plucked) for unique effects.


Striking

The third common method of sound production in stringed instruments is to strike the string. The piano and
hammered dulcimer The hammered dulcimer (also called the hammer dulcimer) is a percussion-stringed instrument which consists of strings typically stretched over a trapezoidal resonant sound board. The hammered dulcimer is set before the musician, who in more trad ...
use this method of sound production. Even though the piano strikes the strings, the use of felt hammers means that the sound that is produced can nevertheless be mellow and rounded, in contrast to the sharp attack produced when a very hard hammer strikes the strings. Violin family string instrument players are occasionally instructed to strike the string with the stick of the bow, a technique called ''
col legno In music for bowed string instruments, , or more precisely (, ), is an instruction to strike the string with the stick of the bow across the strings. History The earliest known use of in Western music is to be found in a piece entitled "Har ...
''. This yields a percussive sound along with the pitch of the note. A well-known use of ''col legno'' for orchestral strings is
Gustav Holst Gustav Theodore Holst (born Gustavus Theodore von Holst; 21 September 1874 – 25 May 1934) was an English composer, arranger and teacher. Best known for his orchestral suite ''The Planets'', he composed many other works across a range ...
's "Mars" movement from ''
The Planets ''The Planets'', Op. 32, is a seven- movement orchestral suite by the English composer Gustav Holst, written between 1914 and 1917. In the last movement the orchestra is joined by a wordless female chorus. Each movement of the suite is name ...
'' suite.


Other methods

The
aeolian harp An Aeolian harp (also wind harp) is a musical instrument that is played by the wind. Named for Aeolus, the ancient Greek god of the wind, the traditional Aeolian harp is essentially a wooden box including a sounding board, with strings stretched ...
employs a very unusual method of sound production: the strings are excited by the movement of the air. Some instruments that have strings have an attached
keyboard Keyboard may refer to: Text input * Keyboard, part of a typewriter * Computer keyboard ** Keyboard layout, the software control of computer keyboards and their mapping ** Keyboard technology, computer keyboard hardware and firmware Music * Musi ...
that the player presses keys on to trigger a mechanism that sounds the strings, instead of directly manipulating the strings. These include the
piano The piano is a stringed keyboard instrument in which the strings are struck by wooden hammers that are coated with a softer material (modern hammers are covered with dense wool felt; some early pianos used leather). It is played using a keyboa ...
, the
clavichord The clavichord is a stringed rectangular keyboard instrument that was used largely in the Late Middle Ages, through the Renaissance, Baroque and Classical eras. Historically, it was mostly used as a practice instrument and as an aid to compositi ...
, and the harpsichord. With these
keyboard instrument A keyboard instrument is a musical instrument played using a keyboard, a row of levers which are pressed by the fingers. The most common of these are the piano, organ, and various electronic keyboards, including synthesizers and digital piano ...
s, strings are occasionally plucked or bowed by hand. Modern
composer A composer is a person who writes music. The term is especially used to indicate composers of Western classical music, or those who are composers by occupation. Many composers are, or were, also skilled performers of music. Etymology and Defi ...
s such as
Henry Cowell Henry Dixon Cowell (; March 11, 1897 – December 10, 1965) was an American composer, writer, pianist, publisher and teacher. Marchioni, Tonimarie (2012)"Henry Cowell: A Life Stranger Than Fiction" ''The Juilliard Journal''. Retrieved 19 June 202 ...
wrote music that requires that the player reach inside the piano and pluck the strings directly, "bow" them with bow hair wrapped around the strings, or play them by rolling the bell of a
brass instrument A brass instrument is a musical instrument that produces sound by sympathetic vibration of air in a tubular resonator in sympathy with the vibration of the player's lips. Brass instruments are also called labrosones or labrophones, from Latin a ...
such as a
trombone The trombone (german: Posaune, Italian, French: ''trombone'') is a musical instrument in the Brass instrument, brass family. As with all brass instruments, sound is produced when the player's vibrating lips cause the Standing wave, air column ...
on the array of strings. However, these are relatively rarely used special techniques. Other keyed string instruments, small enough for a strolling musician to play, include the plucked
autoharp An autoharp or chord zither is a string instrument belonging to the zither family. It uses a series of bars individually configured to mute all strings other than those needed for the intended chord. The term ''autoharp'' was once a trademark of ...
, the bowed
nyckelharpa A nyckelharpa (, "keyed fiddle", or literally "key harp", plural ) is the national musical instrument of Sweden. It is a string instrument or chordophone. Its keys are attached to tangents which, when a key is depressed, serve as frets to cha ...
, and the hurdy-gurdy, which is played by cranking a rosined wheel. Steel-stringed instruments (such as the guitar, bass, violin, etc.) can be played using a magnetic field. An
E-Bow The EBow, short for electronic bow or energy bow, is an electronic device used for playing string instruments, most often the electric guitar. It is manufactured by Heet Sound Products, of Los Angeles, California. It was invented by Greg Heet i ...
is a small hand-held battery-powered device that magnetically excites the strings of an electric string instrument to provide a sustained, singing tone reminiscent of a held bowed violin note. Third bridge is a plucking method where the player ''frets'' a string and strikes the side opposite the bridge. The technique is mainly used on electric instruments because these have a pickup that amplifies only the local string vibration. It is possible on acoustic instruments as well, but less effective. For instance, a player might press on the seventh
fret A fret is any of the thin strips of material, usually metal wire, inserted laterally at specific positions along the neck or fretboard of a stringed instrument. Frets usually extend across the full width of the neck. On some historical instrume ...
on a guitar and pluck it at the head side to make a tone resonate at the opposing side. On electric instruments, this technique generates multitone sounds reminiscent of a clock or bell. Electric string instruments, such as the
electric guitar An electric guitar is a guitar that requires external amplification in order to be heard at typical performance volumes, unlike a standard acoustic guitar (however combinations of the two - a semi-acoustic guitar and an electric acoustic gui ...
, can also be played without touching the strings by using
audio feedback Audio feedback (also known as acoustic feedback, simply as feedback) is a positive feedback situation which may occur when an acoustic path exists between an audio input (for example, a microphone or guitar pickup) and an audio output (for examp ...
. When an electric guitar is plugged into a loud, powerful guitar amplifier with a
loudspeaker A loudspeaker (commonly referred to as a speaker or speaker driver) is an electroacoustic transducer that converts an electrical audio signal into a corresponding sound. A ''speaker system'', also often simply referred to as a "speaker" or " ...
and a high level of
distortion In signal processing, distortion is the alteration of the original shape (or other characteristic) of a signal. In communications and electronics it means the alteration of the waveform of an information-bearing signal, such as an audio signal ...
is intentionally used, the guitar produces sustained high-pitched sounds. By changing the proximity of the guitar to the speaker, the guitarist can produce sounds that cannot be produced with standard plucking and picking techniques. This technique was popularized by
Jimi Hendrix James Marshall "Jimi" Hendrix (born Johnny Allen Hendrix; November 27, 1942September 18, 1970) was an American guitarist, singer and songwriter. Although his mainstream career spanned only four years, he is widely regarded as one of the most ...
and others in the 1960s. It was widely used in
psychedelic rock Psychedelic rock is a rock music Music genre, genre that is inspired, influenced, or representative of psychedelia, psychedelic culture, which is centered on perception-altering hallucinogenic drugs. The music incorporated new electronic sound ...
and
heavy metal music Heavy metal (or simply metal) is a genre of rock music that developed in the late 1960s and early 1970s, largely in the United Kingdom and United States. With roots in blues rock, psychedelic rock and acid rock, heavy metal bands developed a ...
.


Changing the pitch of a vibrating string

There are three ways to change the pitch of a
vibrating string A vibration in a strings (music), string is a wave. Acoustic resonance#Resonance of a string, Resonance causes a vibrating string to produce a sound with constant frequency, i.e. constant pitch (music), pitch. If the length or tension of the strin ...
. String instruments are tuned by varying a string's tension because adjusting length or mass per unit length is impractical. Instruments with a
fingerboard The fingerboard (also known as a fretboard on fretted instruments) is an important component of most stringed instruments. It is a thin, long strip of material, usually wood, that is laminated to the front of the neck of an instrument. The stri ...
are then played by adjusting the length of the vibrating portion of the strings. The following observations all apply to a string that is infinitely flexible (a theoretical assumption, because in practical applications, strings are not infinitely flexible) strung between two fixed supports. Real strings have finite curvature at the bridge and nut, and the bridge, because of its motion, is not exactly nodes of vibration. Hence the following statements about proportionality are approximations.


Length

Pitch can be adjusted by varying the
length Length is a measure of distance. In the International System of Quantities, length is a quantity with dimension distance. In most systems of measurement a base unit for length is chosen, from which all other units are derived. In the Interna ...
of the string. A longer string results in a lower pitch, while a shorter string results in a higher pitch. A
concert harp The pedal harp (also known as the concert harp) is a large and technologically modern harp, designed primarily for use in art music. It may be played solo, as part of a chamber ensemble, or in an orchestra. It typically has 47 strings with seven ...
has pedals that cause a hard object to make contact with a string to shorten its vibrating length during a performance. The frequency is inversely proportional to the length: : f \propto \frac A string twice as long produces a tone of half the frequency (one octave lower).


Tension

Pitch can be adjusted by varying the
tension Tension may refer to: Science * Psychological stress * Tension (physics), a force related to the stretching of an object (the opposite of compression) * Tension (geology), a stress which stretches rocks in two opposite directions * Voltage or el ...
of the string. A string with less tension (looser) results in a lower pitch, while a string with greater tension (tighter) results in a higher pitch. Pushing a pedal on a
pedal steel guitar The pedal steel guitar is a Console steel guitar, console-type of steel guitar with pedals and knee levers that change the pitch of certain strings to enable playing more varied and complex music than any previous steel guitar design. Like all s ...
raises the pitch of certain strings by increasing tension on them (stretching) through a mechanical linkage; release of the pedal returns the pitch to the original. Knee levers on the instrument can lower a pitch by releasing (and restoring) tension in the same way. A homemade
washtub bass The washtub bass, or gutbucket, is a stringed instrument used in American folk music that uses a metal washtub as a resonator. Although it is possible for a washtub bass to have four or more strings and tuning pegs, traditional washtub basses hav ...
made out of a length of rope, a broomstick and a washtub can produce different pitches by increasing the tension on the rope (producing a higher pitch) or reducing the tension (producing a lower pitch). The frequency is proportional to the square root of the tension: : f \propto \sqrt


Linear density

The pitch of a string can also be varied by changing the
linear density Linear density is the measure of a quantity of any characteristic value per unit of length. Linear mass density (titer in textile engineering, the amount of mass per unit length) and linear charge density (the amount of electric charge per unit ...
(mass per unit length) of the string. In practical applications, such as with
double bass The double bass (), also known simply as the bass () (or #Terminology, by other names), is the largest and lowest-pitched Bow (music), bowed (or plucked) string instrument in the modern orchestra, symphony orchestra (excluding unorthodox addit ...
strings or bass
piano The piano is a stringed keyboard instrument in which the strings are struck by wooden hammers that are coated with a softer material (modern hammers are covered with dense wool felt; some early pianos used leather). It is played using a keyboa ...
strings, extra weight is added to strings by winding them with metal. A string with a heavier metal winding produces a lower pitch than a string of equal length without a metal winding. This can be seen on a 2016-era set of gut strings for double bass. The higher-pitched G string is often made of synthetic material, or sometimes animal intestine, with no metal wrapping. To enable the low E string to produce a much lower pitch with a string of the same length, it is wrapped with many wrappings of thin metal wire. This adds to its mass without making it too stiff. The frequency is inversely proportional to the square root of the linear density: : f \propto Given two strings of equal length and tension, the string with higher mass per unit length produces the lower pitch.


String length or scale length

The length of the string from
nut Nut often refers to: * Nut (fruit), fruit composed of a hard shell and a seed, or a collective noun for dry and edible fruits or seeds * Nut (hardware), fastener used with a bolt Nut or Nuts may also refer to: Arts, entertainment, and media Co ...
to
bridge A bridge is a structure built to span a physical obstacle (such as a body of water, valley, road, or rail) without blocking the way underneath. It is constructed for the purpose of providing passage over the obstacle, which is usually somethi ...
on bowed or plucked instruments ultimately determines the distance between different notes on the instrument. For example, a double bass with its low range needs a scale length of around , whilst a violin scale is only about . On the shorter scale of the violin, the left hand may easily reach a range of slightly more than two octaves without
shifting position __NOTOC__ On a string instrument, position is the relative location of the hand on the instrument's neck, indicated by ordinal numbers (e.g., 3rd). Fingering, independent of position, is indicated by numbers, 1-4. Different positions on the same ...
, while on the bass' longer scale, a single octave or a ninth is reachable in lower positions.


Contact points along the string

In bowed instruments, the bow is normally placed perpendicularly to the string, at a point halfway between the end of the fingerboard and the bridge. However, different bow placements can be selected to change
timbre In music, timbre ( ), also known as tone color or tone quality (from psychoacoustics), is the perceived sound quality of a musical note, sound or musical tone, tone. Timbre distinguishes different types of sound production, such as choir voice ...
. Application of the bow close to the bridge (known as ''
sul ponticello A variety of musical terms are likely to be encountered in Sheet music, printed scores, music reviews, and program notes. Most of the terms Italian musical terms used in English, are Italian, in accordance with the Italian origins of many Europea ...
'') produces an intense, sometimes harsh sound, which acoustically emphasizes the upper
harmonics A harmonic is a wave with a frequency that is a positive integer multiple of the ''fundamental frequency'', the frequency of the original periodic signal, such as a sinusoidal wave. The original signal is also called the ''1st harmonic'', the ...
. Bowing above the fingerboard (''
sul tasto A variety of musical terms are likely to be encountered in printed scores, music reviews, and program notes. Most of the terms are Italian, in accordance with the Italian origins of many European musical conventions. Sometimes, the special mus ...
'') produces a purer tone with less overtone strength, emphasizing the
fundamental Fundamental may refer to: * Foundation of reality * Fundamental frequency, as in music or phonetics, often referred to as simply a "fundamental" * Fundamentalism, the belief in, and usually the strict adherence to, the simple or "fundamental" idea ...
, also known as ''flautando'', since it sounds less reedy and more flute-like. Bowed instruments pose a challenge to instrument builders, as compared with instruments that are only plucked (e.g., guitar), because on bowed instruments, the musician must be able to play one string at a time if they wish. As such, a bowed instrument must have a curved bridge that makes the "outer" strings lower in height than the "inner" strings. With such a curved bridge, the player can select one string at a time to play. On guitars and
lute A lute ( or ) is any plucked string instrument with a neck and a deep round back enclosing a hollow cavity, usually with a sound hole or opening in the body. It may be either fretted or unfretted. More specifically, the term "lute" can ref ...
s, the bridge can be flat, because the strings are played by plucking them with the fingers, fingernails or a pick; by moving the fingers or pick to different positions, the player can play different strings. On bowed instruments, the need to play strings individually with the bow also limits the number of strings to about six or seven strings; with more strings, it would be impossible to select individual strings to bow. (Note: bowed strings can also play two bowed notes on two different strings at the same time, a technique called a
double stop In music, a double stop is the technique of playing two notes simultaneously on a stringed instrument such as a violin, a viola, a cello, or a double bass. On instruments such as the Hardanger fiddle it is common and often employed. In performin ...
.) Indeed, on the orchestral string section instruments, four strings are the norm, with the exception of five strings used on some
double bass The double bass (), also known simply as the bass () (or #Terminology, by other names), is the largest and lowest-pitched Bow (music), bowed (or plucked) string instrument in the modern orchestra, symphony orchestra (excluding unorthodox addit ...
es. In contrast, with stringed keyboard instruments, 88 courses are used on a
piano The piano is a stringed keyboard instrument in which the strings are struck by wooden hammers that are coated with a softer material (modern hammers are covered with dense wool felt; some early pianos used leather). It is played using a keyboa ...
, and even though these strings are arranged on a flat bridge, the mechanism can play any of the notes individually. Similar timbral distinctions are also possible with plucked string instruments by selecting an appropriate plucking point, although the difference is perhaps more subtle. In keyboard instruments, the contact point along the string (whether this be hammer, tangent, or plectrum) is a choice made by the instrument designer. Builders use a combination of experience and acoustic theory to establish the right set of contact points. In harpsichords, often there are two sets of strings of equal length. These "choirs" usually differ in their plucking points. One choir has a "normal" plucking point, producing a canonical harpsichord sound; the other has a plucking point close to the bridge, producing a reedier "nasal" sound rich in upper harmonics.


Production of multiple notes

A single string at a certain tension and length only produces one note. To produce multiple notes, string instruments use one of two methods. One is to add enough strings to cover the required range of different notes (e.g., as with the
piano The piano is a stringed keyboard instrument in which the strings are struck by wooden hammers that are coated with a softer material (modern hammers are covered with dense wool felt; some early pianos used leather). It is played using a keyboa ...
, which has sets of 88 strings to enable the performer to play 88 different notes). The other is to provide a way to ''stop'' the strings along their length to shorten the part that vibrates, which is the method used in guitar and violin family instruments to produce different notes from the same string. The piano and harp represent the first method, where each note on the instrument has its own string or course of multiple strings tuned to the same note. (Many notes on a piano are strung with a "choir" of three strings tuned alike, to increase the volume.) A guitar represents the second method—the player's fingers push the string against the fingerboard so that the string is pressed firmly against a metal fret. Pressing the string against a fret while plucking or strumming it shortens the vibrating part and thus produces a different note. Some zithers combine stoppable (melody) strings with a greater number of "open" harmony or chord strings. On instruments with stoppable strings, such as the violin or guitar, the player can shorten the vibrating length of the string, using their fingers directly (or more rarely through some mechanical device, as in the
nyckelharpa A nyckelharpa (, "keyed fiddle", or literally "key harp", plural ) is the national musical instrument of Sweden. It is a string instrument or chordophone. Its keys are attached to tangents which, when a key is depressed, serve as frets to cha ...
and the hurdy-gurdy). Such instruments usually have a fingerboard attached to the neck of the instrument, that provides a hard flat surface the player can stop the strings against. On some string instruments, the fingerboard has
fret A fret is any of the thin strips of material, usually metal wire, inserted laterally at specific positions along the neck or fretboard of a stringed instrument. Frets usually extend across the full width of the neck. On some historical instrume ...
s, raised ridges perpendicular to the strings, that stop the string at precise intervals, in which case the fingerboard is also called a ''fretboard''. Moving frets during performance is usually impractical. The bridges of a
koto Koto may refer to: * Koto (band), an Italian synth pop group * Koto (instrument), a Japanese musical instrument * Koto (kana), a ligature of two Japanese katakana * Koto (traditional clothing), a traditional dress made by Afro-Surinamese women * K ...
, on the other hand, may be moved by the player occasionally in the course of a single piece of music. Many modern Western harps include levers, either directly moved by fingers (on Celtic harps) or controlled by foot pedals (on orchestral harps), to raise the pitch of individual strings by a fixed amount. The Middle Eastern zither, the qanun, is equipped with small levers called ''mandal'' that let each course of multiple strings be incrementally retuned "on the fly" while the instrument is being played. These levers raise or lower the pitch of the string course by a microtone, less than a half step.


Sympathetic strings

Some instruments are employed with
sympathetic string Sympathetic strings or resonance strings are auxiliary strings found on many Indian musical instruments, as well as some Western Baroque instruments and a variety of folk instruments. They are typically not played directly by the performer (excep ...
s—which are additional strings not meant to be plucked. These strings
resonate Resonance describes the phenomenon of increased amplitude that occurs when the frequency of an applied periodic force (or a Fourier component of it) is equal or close to a natural frequency of the system on which it acts. When an oscillat ...
with the played notes, creating additional tones. Sympathetic strings vibrate naturally when various intervals, such as the
unison In music, unison is two or more musical parts that sound either the same pitch or pitches separated by intervals of one or more octaves, usually at the same time. ''Rhythmic unison'' is another term for homorhythm. Definition Unison or per ...
s or the
octave In music, an octave ( la, octavus: eighth) or perfect octave (sometimes called the diapason) is the interval between one musical pitch and another with double its frequency. The octave relationship is a natural phenomenon that has been refer ...
s of the notes of the sympathetic strings are plucked, bowed or struck. This system is used on the
sarangi The sārangī is a bowed, short-necked string instrument played in traditional music from South Asia – Punjabi folk music, Rajasthani folk music, and Boro folk music (there known as the ''serja'') – in Pakistan, India and Bangladesh. It is ...
, the
grand piano The piano is a stringed keyboard instrument in which the strings are struck by wooden hammers that are coated with a softer material (modern hammers are covered with dense wool felt; some early pianos used leather). It is played using a keyboa ...
, the
hardanger fiddle A Hardanger fiddle ( no, hardingfele) is a traditional stringed instrument considered to be the national instrument of Norway. In modern designs, this type of fiddle is very similar to the violin, though with eight or nine strings (rather than ...
and the rubab.


Sound production


Acoustic instruments

A vibrating string strung on a very thick log, as a hypothetical example, would make only a very quiet sound, so string instruments are usually constructed in such a way that the vibrating string is coupled to a hollow resonating chamber, a soundboard, or both. On the violin, for example, the four strings pass over a thin wooden bridge resting on a hollow box (the body of the violin). The normal force applied to the body from the strings is supported in part by a small cylinder of wood called the
soundpost In a string instrument, the sound post or soundpost is a dowel inside the instrument under the treble end of the bridge, spanning the space between the top and back plates and held in place by friction. It serves as a structural support for an arc ...
. The violin body also has two "f-holes" carved on the top. The strings' vibrations are distributed via the bridge and soundpost to all surfaces of the instrument, and are thus made louder by matching of the
acoustic impedance Acoustic impedance and specific acoustic impedance are measures of the opposition that a system presents to the acoustic flow resulting from an acoustic pressure applied to the system. The SI unit of acoustic impedance is the pascal-second per cub ...
. The correct technical explanation is that they allow a better match to the
acoustic impedance Acoustic impedance and specific acoustic impedance are measures of the opposition that a system presents to the acoustic flow resulting from an acoustic pressure applied to the system. The SI unit of acoustic impedance is the pascal-second per cub ...
of the air. It is sometimes said that the sounding board or soundbox "amplifies" the sound of the strings. In reality, no power amplification occurs, because all of the
energy In physics, energy (from Ancient Greek: ἐνέργεια, ''enérgeia'', “activity”) is the quantitative property that is transferred to a body or to a physical system, recognizable in the performance of work and in the form of heat a ...
to produce
sound In physics, sound is a vibration that propagates as an acoustic wave, through a transmission medium such as a gas, liquid or solid. In human physiology and psychology, sound is the ''reception'' of such waves and their ''perception'' by the ...
comes from the vibrating string. The mechanism is that the sounding board of the instrument provides a larger surface area to create
sound wave In physics, sound is a vibration that propagates as an acoustic wave, through a transmission medium such as a gas, liquid or solid. In human physiology and psychology, sound is the ''reception'' of such waves and their ''perception'' by the ...
s than that of the string and therefore acts as a matching element between the acoustic impedance of the string and that of the surrounding air. A larger vibrating surface can sometimes produce better matching; especially at lower frequencies. All
lute A lute ( or ) is any plucked string instrument with a neck and a deep round back enclosing a hollow cavity, usually with a sound hole or opening in the body. It may be either fretted or unfretted. More specifically, the term "lute" can ref ...
type instruments traditionally have a bridge, which holds the string at the proper action height from the fret/finger board at one end of the strings. On acoustic instruments, the bridge performs an equally important function of transmitting string energy into the "sound box" of the instrument, thereby increasing the sound volume. The specific design, and materials used in the construction of the bridge of an instrument, have a dramatic impact upon both the sound and responsiveness of the instrument. Achieving a tonal characteristic that is effective and pleasing to the player's and listener's ear is something of an art and craft, as well as a science, and the makers of string instruments often seek very high quality woods to this end, particularly
spruce A spruce is a tree of the genus ''Picea'' (), a genus of about 35 species of coniferous evergreen trees in the family Pinaceae, found in the northern temperate and boreal (taiga) regions of the Earth. ''Picea'' is the sole genus in the subfami ...
(chosen for its lightness, strength and flexibility) and
maple ''Acer'' () is a genus of trees and shrubs commonly known as maples. The genus is placed in the family Sapindaceae.Stevens, P. F. (2001 onwards). Angiosperm Phylogeny Website. Version 9, June 2008 nd more or less continuously updated since http ...
(a very hard wood). Spruce is used for the sounding boards of instruments from the violin to the piano. Instruments such as the banjo use a drum, covered in natural or synthetic skin as their soundboard. Acoustic instruments can also be made out of artificial materials, such as
carbon fiber Carbon fiber-reinforced polymers (American English), carbon-fibre-reinforced polymers (Commonwealth English), carbon-fiber-reinforced plastics, carbon-fiber reinforced-thermoplastic (CFRP, CRP, CFRTP), also known as carbon fiber, carbon compo ...
and
fiberglass Fiberglass (American English) or fibreglass (Commonwealth English) is a common type of fiber-reinforced plastic using glass fiber. The fibers may be randomly arranged, flattened into a sheet called a chopped strand mat, or woven into glass cloth ...
(particularly the larger, lower-pitched instruments, such as cellos and basses). In the early 20th century, the Stroh violin used a diaphragm-type
resonator A resonator is a device or system that exhibits resonance or resonant behavior. That is, it naturally oscillates with greater amplitude at some frequencies, called resonant frequencies, than at other frequencies. The oscillations in a resonator ...
and a metal horn to project the string sound, much like early mechanical gramophones. Its use declined beginning about 1920, as electronic amplification through
power amplifier An audio power amplifier (or power amp) is an electronic amplifier that amplifies low-power electronic audio signals, such as the signal from a radio receiver or an electric guitar pickup, to a level that is high enough for driving loudspea ...
s and
loudspeaker A loudspeaker (commonly referred to as a speaker or speaker driver) is an electroacoustic transducer that converts an electrical audio signal into a corresponding sound. A ''speaker system'', also often simply referred to as a "speaker" or " ...
s was developed and came into use. String instrument players can electronically amplify their instruments by connecting them to a
PA system A public address system (or PA system) is an electronic system comprising microphones, amplifiers, loudspeakers, and related equipment. It increases the apparent volume (loudness) of a human voice, musical instrument, or other acoustic sound sou ...
or a
guitar amplifier A guitar amplifier (or amp) is an electronic device or system that strengthens the electrical signal from a pickup on an electric guitar, bass guitar, or acoustic guitar so that it can produce sound through one or more loudspeakers, which a ...
.


Electronic amplification

Most string instruments can be fitted with
piezoelectric Piezoelectricity (, ) is the electric charge that accumulates in certain solid materials—such as crystals, certain ceramics, and biological matter such as bone, DNA, and various proteins—in response to applied Stress (mechanics), mechanical s ...
or magnetic pickups to convert the string's vibrations into an electrical signal that is amplified and then converted back into sound by loudspeakers. Some players attach a pickup to their traditional string instrument to "electrify" it. Another option is to use a solid-bodied instrument, which reduces unwanted
feedback Feedback occurs when outputs of a system are routed back as inputs as part of a chain of cause-and-effect that forms a circuit or loop. The system can then be said to ''feed back'' into itself. The notion of cause-and-effect has to be handled ...
howls or squeals. Amplified string instruments can be much louder than their acoustic counterparts, so musicians can play them in relatively loud rock, blues, and jazz ensembles. Amplified instruments can also have their amplified tone modified by using electronic effects such as distortion, reverb, or wah-wah. Bass-register string instruments such as the double bass and the electric bass are amplified with bass instrument amplifiers that are designed to reproduce low-frequency sounds. To modify the tone of amplified bass instruments, a range of electronic
bass effects Bass effects are electronic effects units that are designed for use with an electric bass and a bass amplifier, or for an upright bass and a bass amp or PA system. Bass effects are commonly available in stompbox-style pedals, which are metal or ...
are available, such as distortion and chorus.


Symphonic strings

The string instruments usually used in the
orchestra An orchestra (; ) is a large instrumental ensemble typical of classical music, which combines instruments from different families. There are typically four main sections of instruments: * bowed string instruments, such as the violin, viola, c ...
, and often called the "symphonic strings" or string section are: *
Violins The violin, sometimes known as a ''fiddle'', is a wooden chordophone (string instrument) in the violin family. Most violins have a hollow wooden body. It is the smallest and thus highest-pitched instrument (soprano) in the family in regular ...
(divided into two sections—first violins and second violins; these sections play exactly the same instruments; the difference is that the first violins play higher-register lines and the second violins play lower-register parts,
accompaniment Accompaniment is the musical part which provides the rhythmic and/or harmonic support for the melody or main themes of a song or instrumental piece. There are many different styles and types of accompaniment in different genres and styles ...
parts or
countermelodies In music, (German for ''primary voice'') or is the main voice, chief part; i.e., the contrapuntal or melodic line of primary importance, in opposition to . (German for ''secondary voice'') or is the secondary part; i.e., a secondary contrap ...
) *
Violas ; german: Bratsche , alt=Viola shown from the front and the side , image=Bratsche.jpg , caption= , background=string , hornbostel_sachs=321.322-71 , hornbostel_sachs_desc=Composite chordophone sounded by a bow , range= , related= *Violin family ...
*
Cello The cello ( ; plural ''celli'' or ''cellos'') or violoncello ( ; ) is a Bow (music), bowed (sometimes pizzicato, plucked and occasionally col legno, hit) string instrument of the violin family. Its four strings are usually intonation (music), t ...
s *
Double bass The double bass (), also known simply as the bass () (or #Terminology, by other names), is the largest and lowest-pitched Bow (music), bowed (or plucked) string instrument in the modern orchestra, symphony orchestra (excluding unorthodox addit ...
es When orchestral instrumentation specifies "strings," it often means this combination of string parts. Orchestral works rarely omit any of these string parts, but often include additional string instruments, especially the
concert harp The pedal harp (also known as the concert harp) is a large and technologically modern harp, designed primarily for use in art music. It may be played solo, as part of a chamber ensemble, or in an orchestra. It typically has 47 strings with seven ...
and piano. In the
Baroque orchestra A Baroque orchestra is an ensemble for mixed instruments that existed during the Baroque era of Western Classical music, commonly identified as 1600–1750. Baroque orchestras are typically much smaller, in terms of the number of performers, than t ...
from the 1600s–1750 (or with modern groups playing
early music Early music generally comprises Medieval music (500–1400) and Renaissance music (1400–1600), but can also include Baroque music (1600–1750). Originating in Europe, early music is a broad musical era for the beginning of Western classical m ...
) harpsichord is almost always used to play the
basso continuo Basso continuo parts, almost universal in the Baroque era (1600–1750), provided the harmonic structure of the music by supplying a bassline and a chord progression. The phrase is often shortened to continuo, and the instrumentalists playing th ...
part (the written-out
bass line Bassline (also known as a bass line or bass part) is the term used in many styles of music, such as blues, jazz, funk, dub and electronic, traditional, or classical music for the low-pitched instrumental part or line played (in jazz and some f ...
and improvised chords), and often a
theorbo The theorbo is a plucked string instrument of the lute family, with an extended neck and a second pegbox. Like a lute, a theorbo has a curved-back sound box (a hollow box) with a wooden top, typically with a sound hole, and a neck extending ou ...
or
lute A lute ( or ) is any plucked string instrument with a neck and a deep round back enclosing a hollow cavity, usually with a sound hole or opening in the body. It may be either fretted or unfretted. More specifically, the term "lute" can ref ...
or a
pipe organ The pipe organ is a musical instrument that produces sound by driving pressurized air (called ''wind'') through the organ pipes selected from a keyboard. Because each pipe produces a single pitch, the pipes are provided in sets called ''ranks ...
. In some classical music, such as the
string quartet The term string quartet can refer to either a type of musical composition or a group of four people who play them. Many composers from the mid-18th century onwards wrote string quartets. The associated musical ensemble consists of two violinists ...
, the double bass is not typically used; the cello plays the bass role in this literature.


See also

* "
Essay on the fingering of the violoncello and on the conduct of the bow Jean-Louis Duport (4 October 17497 September 1819), sometimes known as Duport the Younger to distinguish him from his older brother (and teacher) Jean-Pierre (1741-1818), was a cellist, pedagogue, and composer. He is perhaps best known today fo ...
" *
List of string instruments This is a list of string instruments. Bowed * Agiarut (Alaska) * Ainu fiddle (Ainu) * Ajaeng (Korea) * Alexander violin (United States) * Anzad * apache fiddle (Apache) * Apkhyarta (Abkhazia) * Arpeggione * Banhu (China) * Baryton * Baz ...
*
Luthier A luthier ( ; AmE also ) is a craftsperson who builds or repairs string instruments that have a neck and a sound box. The word "luthier" is originally French and comes from the French word for lute. The term was originally used for makers o ...
(maker of stringed instruments) *
Musical acoustics Musical acoustics or music acoustics is a multidisciplinary field that combines knowledge from physics, psychophysics, organology (classification of the instruments), physiology, music theory, ethnomusicology, signal processing and instrument buil ...
*
Ravanahatha A ravanahatha (variant names: ''ravanhatta'', ''rawanhattha'', ''ravanastron'', ''ravana hasta veena'') is an ancient bowed, stringed instrument, used in India, Pakistan, Sri Lanka, and surrounding areas. It has been suggested as an ancestor of t ...
* String instrument extended technique * String instrument repertoire *
String orchestra A string orchestra is an orchestra consisting solely of a string section made up of the bowed strings used in Western Classical music. The instruments of such an orchestra are most often the following: the violin, which is divided into first ...
*
Strings (music) A string is the vibrating element that produces sound in string instruments such as the guitar, harp, piano (piano wire), and members of the violin family. Strings are lengths of a flexible material that a musical instrument holds under te ...
*
Stringed instrument tunings This is a chart of stringed instrument tunings. Instruments are listed alphabetically by their most commonly known name. Terminology A Course (music), course may consist of one or more Strings (music), strings. Courses are listed reading from ...


References


External links


Savart Journal
, an online resource published in collaboration with the Guild of American Luthiers.


Instruments in Depth: The Viola
an online feature presented by Bloomingdale School of Music (2010) *
A Brief History of String Instruments
{{DEFAULTSORT:String Instrument Orchestras Rhythm section