Vocal harmony is a style of

vocal music Vocal music is a type of singing performed by one or more singers, either with instrumental accompaniment, or without instrumental accompaniment (a cappella), in which singing provides the main focus of the piece. Music which employs singing but d ...

in which a

consonant In articulatory phonetics, a consonant is a speech sound that is articulated with complete or partial closure of the vocal tract. Examples are and pronounced with the lips; and pronounced with the front of the tongue; and pronounced wi ...

note or notes are simultaneously sung as a main melody in a predominantly

homophonic In music, homophony (;, Greek: ὁμόφωνος, ''homóphōnos'', from ὁμός, ''homós'', "same" and φωνή, ''phōnē'', "sound, tone") is a texture in which a primary part is supported by one or more additional strands that flesh ...

texture. Vocal

harmonies In music, harmony is the process by which individual sounds are joined together or composed into whole units or compositions. Often, the term harmony refers to simultaneously occurring frequencies, pitches ( tones, notes), or chords. However ...

are used in many subgenres of

European art 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" als ...

, including Classical

choral music A choir ( ; also known as a chorale or chorus) is a musical ensemble of singers. Choral music, in turn, is the music written specifically for such an ensemble to perform. Choirs may perform music from the classical music repertoire, which s ...

and

opera Opera is a form of theatre in which music is a fundamental component and dramatic roles are taken by singers. Such a "work" (the literal translation of the Italian word "opera") is typically a collaboration between a composer and a libr ...

and in the popular styles from many Western cultures ranging from folk songs and musical theater pieces to

rock Rock most often refers to: * Rock (geology), a naturally occurring solid aggregate of minerals or mineraloids * Rock music, a genre of popular music Rock or Rocks may also refer to: Places United Kingdom * Rock, Caerphilly, a location in Wales ...

ballads. In the simplest style of vocal harmony, the main vocal melody is supported by a single backup vocal line, either at a pitch which is above or below the main vocal line, often in thirds or sixths which fit in with the

chord progression In a musical composition, a chord progression or harmonic progression (informally chord changes, used as a plural) is a succession of chords. Chord progressions are the foundation of harmony in Western musical tradition from the common practice ...

used in the song. In more complex vocal harmony arrangements, different backup singers may sing two or even three other notes at the same time as each of the main melody notes, mostly with consonant, pleasing-sounding thirds, sixths, and fifths (although dissonant notes may be used as short

passing note A nonchord tone (NCT), nonharmonic tone, or embellishing tone is a note in a piece of music or song that is not part of the implied or expressed chord set out by the harmonic framework. In contrast, a chord tone is a note that is a part of the ...

s).

In art music

Vocal harmonies have been an important part of Western art music since the Renaissance-era introduction of

Mass Mass is an intrinsic property of a body. It was traditionally believed to be related to the quantity of matter in a physical body, until the discovery of the atom and particle physics. It was found that different atoms and different eleme ...

melodies harmonized in sweet thirds and sixths. With the rise of the Lutheran church's

chorale Chorale is the name of several related musical forms originating in the music genre of the Lutheran chorale: * Hymn tune of a Lutheran hymn (e.g. the melody of "Wachet auf, ruft uns die Stimme"), or a tune in a similar format (e.g. one of the th ...

hymn A hymn is a type of song, and partially synonymous with devotional song, specifically written for the purpose of adoration or prayer, and typically addressed to a deity or deities, or to a prominent figure or personification. The word ''hy ...

singing style, congregations sang hymns arranged with four or five-part vocal harmony. In the Romantic era of music during the 1800s, vocal harmonization became more complex, and arrangers began including more dissonant harmonies. Operas and choral music from the Romantic era used tense-sounding vocal harmonies with augmented and diminished intervals as an important tool for underscoring the drama of the music. With contemporary music from the 1900s and 2000s, composers made increasingly difficult demands on

choir A choir ( ; also known as a chorale or chorus) is a musical ensemble of singers. Choral music, in turn, is the music written specifically for such an ensemble to perform. Choirs may perform music from the classical music repertoire, which ...

s which were singing in vocal harmony, such as instructions to sing

microtonal Microtonal music or microtonality is the use in music of microtones— intervals smaller than a semitone, also called "microintervals". It may also be extended to include any music using intervals not found in the customary Western tuning of t ...

notes or make percussive sounds.

In popular music

To sing vocal harmony in a pop or rock context,

backup singer A backing vocalist is a singer who provides vocal harmony with the lead vocalist or other backing vocalists. A backing vocalist may also sing alone as a lead-in to the main vocalist's entry or to sing a counter-melody. Backing vocalists are used ...

s need to be able to adjust the pitch of their notes so that they are in tune with the pitch of the lead vocalist and the band's instruments. As well, the rhythm of the backup harmony parts has to be in time with the lead singer and the rhythm section. While some bands use relatively simple harmony vocals, with long, slow-moving vocal harmony notes supporting the vocal lead during the chorus sections, other bands make the backup singers into more equal partners of the main vocalist. In more vocally oriented bands, backup singers may have to sing complex parts which demand a vocal agility and sensitivity equal to that of the main vocal line. Usually, pop and rock bands use harmony vocals while the rest of the band is playing; however, as an effect, some rock and pop harmony vocals are done a cappella, without instrumental accompaniment. This device became widely used in the end chorus section of 1980s and 1990s-era hard rock and heavy metal ballads as well as

horror punk Horror punk is a music genre that mixes punk rock and 1950s-influenced doo-wop and rockabilly sounds with morbid and violent imagery and lyrics which are often influenced by horror films and science fiction B-movies. The genre was pioneered b ...

(which cites influence from both heavy metal and doo-wop).

Other roles

While some bands use backup singers who only sing when they are on stage, it is common for backup singers to have other roles while they are on stage. In many rock and metal bands, the musicians doing backup vocals also play instruments, such as

keyboards 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 ...

, rhythm guitar, bass or drums. In

Latin Latin (, or , ) is a classical language belonging to the Italic branch of the Indo-European languages. Latin was originally a dialect spoken in the lower Tiber area (then known as Latium) around present-day Rome, but through the power of the ...

Afro-Cuban Afro-Cubans or Black Cubans are Cubans of West African ancestry. The term ''Afro-Cuban'' can also refer to historical or cultural elements in Cuba thought to emanate from this community and the combining of native African and other cultural el ...

groups, backup singers may play percussion instruments or shakers while singing. In some pop and hip-hop groups and in

musical theater Musical theatre is a form of theatrical performance that combines songs, spoken dialogue, acting and dance. The story and emotional content of a musical – humor, pathos, love, anger – are communicated through words, music, movemen ...

, the backup singers may be required to perform elaborately choreographed dance routines while they sing through headset microphones.

Barbershop quartets

One of the more complex styles of vocal harmony is the barbershop quartet style, in which the melody is harmonized in four parts. In a barbershop quartet arrangement, each voice has its own role: generally, the

lead Lead is a chemical element with the symbol Pb (from the Latin ) and atomic number 82. It is a heavy metal that is denser than most common materials. Lead is soft and malleable, and also has a relatively low melting point. When freshly cu ...

sings the melody, the

tenor A tenor is a type of classical male singing voice whose vocal range lies between the countertenor and baritone voice types. It is the highest male chest voice type. The tenor's vocal range extends up to C5. The low extreme for tenors is wide ...

harmonizes above the melody, the bass sings the lowest harmonizing notes, and the baritone completes the chord, usually below the lead. The melody is not usually sung by the tenor or bass. Barbershop quartets are more likely to use dissonant and "tense"-sounding dominant seventh chords than pop or rock bands.

Doo-wop groups

Doo-wop is a style of vocal-based

rhythm and blues Rhythm and blues, frequently abbreviated as R&B or R'n'B, is a genre of popular music that originated in African-American communities in the 1940s. The term was originally used by record companies to describe recordings marketed predominantly ...

music, which developed in African-American communities in the 1940s and which achieved mainstream popularity in the US both in the 1950s to the early 1960s. It used smooth, consonant vocal harmonies, with a number of singers imitating instruments while singing nonsense syllables. For example, in

The Ravens ''The'' () is a grammatical article in English, denoting persons or things already mentioned, under discussion, implied or otherwise presumed familiar to listeners, readers, or speakers. It is the definite article in English. ''The'' is the ...

' song " Count Every Star" (1950), the singers imitate the "doomph", "doomph" plucking-sound of a

double bass The double bass (), also known simply as the bass () (or by other names), is the largest and lowest-pitched bowed (or plucked) string instrument in the modern symphony orchestra (excluding unorthodox additions such as the octobass). Similar i ...

. Well-known hits include " In the Still of the Night (I Remember)" by

The Five Satins The Five Satins are an American doo-wop group, best known for their 1956 million-selling song, " In the Still of the Night." They were formed in 1954 and continued performing until 1994. When it was formed, the group consisted of six members, w ...

and " Get a Job" by

The Silhouettes The Silhouettes were an American doo wop/ R&B group, whose single " Get a Job" was a number 1 hit on the '' Billboard'' R&B singles chart and pop singles chart in 1958. The doo-wop revival group Sha Na Na derived their name from the song's ly ...

, a hit in 1958. Doo-wop remained popular until just before the

British Invasion The British Invasion was a cultural phenomenon of the mid-1960s, when rock and pop music acts from the United Kingdom and other aspects of British culture became popular in the United States and significant to the rising "counterculture" on ...

of 1964.

References