In
music theory, a dominant seventh chord, or major minor seventh chord, is a
seventh chord, usually built on the fifth degree of the major scale, and composed of a
root
In vascular plants, the roots are the organs of a plant that are modified to provide anchorage for the plant and take in water and nutrients into the plant body, which allows plants to grow taller and faster. They are most often below the su ...
,
major third,
perfect fifth, and
minor seventh. Thus it is a
major triad together with a minor seventh,
denoted by the letter name of the chord root and a superscript "7". An example is the dominant seventh chord built on G, written as G
7, having pitches G–B–D–F:
:
Dominant seventh chords contain a strong
dissonance – a
tritone between the chord's
third
Third or 3rd may refer to:
Numbers
* 3rd, the ordinal form of the cardinal number 3
* , a fraction of one third
* 1⁄60 of a ''second'', or 1⁄3600 of a ''minute''
Places
* 3rd Street (disambiguation)
* Third Avenue (disambiguation)
* Hi ...
and
seventh.
Dominant seventh chords are often built on the
fifth scale degree (or dominant) of a
key. For instance, in the C major scale, G is the fifth note of the scale, and the seventh chord built on G is the dominant seventh chord, G
7 (shown above). In this chord, F is a minor seventh above G. In
Roman numeral analysis, G
7 would be represented as V
7 in the key of C major.
Similarly, this chord also occurs on the seventh degree of any natural minor scale (e.g., G7 in A minor).
The dominant seventh is perhaps the most important of the seventh chords. It was the first seventh chord to appear regularly in
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" al ...
. The V
7 chord is found almost as often as the V, the
dominant triad, and typically
functions to drive the piece strongly toward a
resolution to the
tonic of the key.
A dominant seventh chord can be represented by the
integer notation relative to the dominant.
History
Renaissance composers
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 idea ...
conceived of harmony in terms of
intervals rather than
chords, "however, certain
dissonant sonorities suggest that the dominant seventh chord occurred with some frequency."
Monteverdi (usually credited as the first to use the V
7 chord without
preparation) and other early
Baroque composers
Composers of the Baroque era, ordered by date of birth:
Transition from Renaissance to Baroque (born 1500–49)
Composers in the Renaissance/Baroque transitional era include the following (listed by their date of birth):
* Philippe de Monte (152 ...
begin to treat the V
7 as a chord as part of the introduction of functional harmony.
An excerpt from Monteverdi's "Lasciatemi Morire", ''
Lamento d'Arianna
' ( SV 291, ''Ariadne'') is the lost second opera by Italian composer Claudio Monteverdi. One of the earliest operas in general, it was composed in 1607–1608 and first performed on 28 May 1608, as part of the musical festivities for a royal we ...
'' (1608) is shown below. In it, a dominant seventh chord (in red) is handled conservatively, "prepared and resolved as a
suspension, clearly indicating its dissonant status."
[Benward & Saker (2003), vol. 1: p. 201.]
:
The V
7 was in constant use during the
Classical period, with similar treatment to that of the Baroque. In the
Romantic period
Romanticism (also known as the Romantic movement or Romantic era) was an artistic, literary, musical, and intellectual movement that originated in Europe towards the end of the 18th century, and in most areas was at its peak in the approximate ...
, freer
voice-leading was gradually developed, leading to the waning of functional use in the
post-Romantic and
Impressionistic periods including more dissonant dominant chords through higher
extensions
Extension, extend or extended may refer to:
Mathematics
Logic or set theory
* Axiom of extensionality
* Extensible cardinal
* Extension (model theory)
* Extension (predicate logic), the set of tuples of values that satisfy the predicate
* Ex ...
and lessened use of the major minor chord's dominant function.
Twentieth-century classical music either consciously used
functional harmony or was entirely free of V
7 chords while
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 m ...
and
popular music
Popular music is music with wide appeal that is typically distributed to large audiences through the music industry. These forms and styles can be enjoyed and performed by people with little or no musical training.Popular Music. (2015). ''Fu ...
s continued to use functional harmony including V
7 chords.
An excerpt from
Chopin's
Mazurka in F minor (1849), Op. 68, No. 4, mm. 1–4 is shown below with dominant sevenths in red: "the seventh factor had by this time achieved nearly consonant status."
:
Use
Inversions
:
The opening bars of
Mozart’s
Piano Sonata in C, K545 features dominant seventh chords in both second and first inversions:The concluding
cadence of the same movement features the chord in root position:A striking use of inversions of the dominant seventh can be found in this passage from the first movement of
Beethoven
Ludwig van Beethoven (baptised 17 December 177026 March 1827) was a German composer and pianist. Beethoven remains one of the most admired composers in the history of Western music; his works rank amongst the most performed of the classic ...
’s
String Quartet Op. 127. Here, the second and third inversions contribute to the "magnificently rich harmony" :
Function
The
function of the dominant seventh chord is to
resolve
Resolve may refer to:
* ''Resolve'' (Lagwagon album)
* ''Resolve'' (Last Tuesday album)
* "Resolve" (song), by the Foo Fighters
*''The Resolve'', a 1915 American silent short drama film
* "Resolve" (''One Tree Hill'' episode)
*''Resolve'', a Briti ...
to the
tonic note or chord.
This dominant seventh chord is useful to composers because it contains both a major triad and the interval of a
tritone. The major triad confers a very "strong" sound. The tritone is created by the co-occurrence of the third degree and seventh degree (e.g., in the G
7 chord, the
interval between B and F is a tritone).
In a diatonic context, the third of the chord is the
leading-tone of the scale, which has a strong tendency to pull towards the tonic of the key (e.g., in C, the third of G
7, B, is the leading tone of the key of C). The seventh of the chord acts as an upper leading-tone to the third of the scale (in C: the seventh of G
7, F, is a half-step above and leads down to E).
This, in combination with the strength of root movement by fifth, and the natural resolution of the dominant triad to the tonic triad (e.g., from GBD to CEG in the key of C major), creates a resolution with which to end a piece or a section, often in a
cadence.
:
\new PianoStaff <<
\new Staff <<
\relative c'
>>
\new Staff <<
\new Voice \relative c'
>>
>>
Because of this original usage, it also quickly became an easy way to trick the listener's ear with a
deceptive cadence
In Western musical theory, a cadence (Latin ''cadentia'', "a falling") is the end of a phrase in which the melody or harmony creates a sense of full or partial resolution, especially in music of the 16th century onwards.Don Michael Randel (1999) ...
. The dominant seventh may work as part of a
circle progression
A circle is a shape consisting of all points in a plane that are at a given distance from a given point, the centre. Equivalently, it is the curve traced out by a point that moves in a plane so that its distance from a given point is cons ...
, preceded by the
supertonic chord, ii.
Importantly, non-diatonic dominant seventh chords (sometimes called a ''
chromatic'' seventh), borrowed from another key, can allow the composer to
modulate to that other key. This technique is extremely common, particularly since the Classical period, and has led to further innovative uses of the dominant seventh chord such as
secondary dominant (V
7/V, shown below),
extended dominant (V
7/V/V), and
substitute dominant (V
7/V) chords.
:
Voice leading
For
common practice voice leading or "strict
resolution" of the dominant seventh chord:
* In the V
7–I resolution, the dominant, leading note, and supertonic resolve to the tonic, whereas the subdominant resolves to the mediant.
*:
\new PianoStaff <<
\new Staff <<
\relative c'
>>
\new Staff <<
\new Voice \relative c'
>>
>>
* In the other resolutions, the dominant remains stationary, the leading note and supertonic resolve to the tonic, and the subdominant resolves to the mediant.
*:
\new PianoStaff <<
\new Staff <<
\relative c'
>>
\new Staff <<
\new Voice \relative c'
>>
>>
* All four tones may be present, though the root may be doubled and the fifth omitted.
[Benjamin, Horvit, and Nelson (2008). ''Techniques and Materials of Music'', pp. 46–47. .][Benward & Saker (2003), vol. 1: pp. 202–204.][Benward & Saker (2008), vol. 2: p. 343]
* The
diminished fifth
Diminished may refer to:
*Diminution
In Western music and music theory, diminution (from Medieval Latin ''diminutio'', alteration of Latin ''deminutio'', decrease) has four distinct meanings. Diminution may be a form of embellishment in whic ...
(if the seventh is above the third, as in the first measure below) resolves inwards while the
augmented fourth
Augment or augmentation may refer to:
Language
*Augment (Indo-European), a syllable added to the beginning of the word in certain Indo-European languages
*Augment (Bantu languages), a morpheme that is prefixed to the noun class prefix of nouns i ...
(if the seventh is below the third, as in the second measure below) resolves outward. This means that the seventh resolves
stepwise downwards
while the third resolves upwards to the tonic
though in such cases the root of the tonic chord may need to be tripled.
*:
\new Staff <<
\new Voice \relative c''
\new Voice \relative c''
>>
* The root of the V
7, when in the
bass
Bass or Basses may refer to:
Fish
* Bass (fish), various saltwater and freshwater species
Music
* Bass (sound), describing low-frequency sound or one of several instruments in the bass range:
** Bass (instrument), including:
** Acoustic bass gui ...
, resolves to the root of the I, in the bass.
* In an incomplete V
7, with a missing fifth, the doubled root remains stationary.
* The "free resolution of the seventh" features the seventh in an inner voice moving stepwise upwards to the fifth of I
According to
Heinrich Schenker, "The dissonance is always passing, ''never a chord member'' (''Zusammenklang''),'" and often (though by no means always) the voice leading suggests either a
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 ...
:
:8 7 3
:5 5 1
or resolution of a (hypothetical)
suspension:
:(8) 7 3
:(4) 5 1
In blues progressions
In
rock and
popular music
Popular music is music with wide appeal that is typically distributed to large audiences through the music industry. These forms and styles can be enjoyed and performed by people with little or no musical training.Popular Music. (2015). ''Fu ...
songs following the
blues progression
The 12-bar blues (or blues changes) is one of the most prominent chord progressions in popular music. The blues progression has a distinctive form in lyrics, phrase, chord structure, and duration. In its basic form, it is predominantly based ...
, the
IV and
V chords are "almost always" dominant seventh chords (sometimes with
extensions
Extension, extend or extended may refer to:
Mathematics
Logic or set theory
* Axiom of extensionality
* Extensible cardinal
* Extension (model theory)
* Extension (predicate logic), the set of tuples of values that satisfy the predicate
* Ex ...
) with the
tonic chord most often being a major triad. Examples include
Bill Haley and the Comets
Bill Haley & His Comets were an American rock and roll band founded in 1947 that continued until Haley's death in 1981. The band was also known as Bill Haley and the Comets and Bill Haley's Comets. From late 1954 to late 1956, the group record ...
' "
Rock Around the Clock
"Rock Around the Clock" is a rock and roll song in the 12-bar blues format written by Max C. Freedman and James E. Myers (the latter being under the pseudonym "Jimmy De Knight") in 1952. The best-known and most successful rendition was record ...
" and
Buster Brown's "
Fanny Mae
The Federal National Mortgage Association (FNMA), commonly known as Fannie Mae, is a United States government-sponsored enterprise (GSE) and, since 1968, a publicly traded company. Founded in 1938 during the Great Depression as part of the New ...
", while in
Chuck Berry's "
Back in the U.S.A." and
Loggins and Messina
Loggins and Messina was an American rock-pop duo consisting of Kenny Loggins and Jim Messina, who achieved their success in the early to mid-1970s. Among their well-known songs are "Danny's Song", "House at Pooh Corner", and " Your Mama Don't D ...
's "
Your Mama Don't Dance
"Your Mama Don't Dance" is a hit 1972 song by the rock duo Loggins and Messina. Released on their self-titled album ''Loggins and Messina'', it reached number four on the ''Billboard'' pop chart and number 19 on the ''Billboard'' Easy Listening ...
" the tonic chord is also a dominant seventh.
[Stephenson, Ken (2002). ''What to Listen for in Rock: A Stylistic Analysis'', p. 82. .] Used mostly in the first fifteen years of the rock era and now sounding somewhat "retrospective" (e.g.,
Oasis' "
Roll With It"), other examples of tonic dominant seventh chords include
Little Richard
Richard Wayne Penniman (December 5, 1932 – May 9, 2020), known professionally as Little Richard, was an American musician, singer, and songwriter. He was an influential figure in popular music and culture for seven decades. Described as the " ...
's "
Lucille",
The Beatles
The Beatles were an English Rock music, rock band, formed in Liverpool in 1960, that comprised John Lennon, Paul McCartney, George Harrison and Ringo Starr. They are regarded as the Cultural impact of the Beatles, most influential band of al ...
' "
I Saw Her Standing There",
Nilsson's "
Coconut",
Jim Croce's "
You Don't Mess Around With Jim", and
The Drifters
The Drifters are several American doo-wop and R&B/ soul vocal groups. They were originally formed as a backing group for Clyde McPhatter, formerly the lead tenor of Billy Ward and his Dominoes in 1953. The second group of Drifters, formed i ...
' "
On Broadway".
Chuck Berry's "
Rock and Roll Music
Rock and roll (often written as rock & roll, rock 'n' roll, or rock 'n roll) is a genre of popular music that evolved in the United States during the late 1940s and early 1950s. It originated from African-American music such as jazz, rhythm an ...
" uses the dominant seventh on I, IV, and V.
Related chords
The dominant seventh is
enharmonically equivalent to the
German sixth. For example, the German sixth A–C–E–F (which typically resolves to G) is equivalent to the dominant seventh A–C–E–G (which typically resolves to D):
:
The dominant seventh chord is frequently used to approximate a
harmonic seventh chord, which is one possible
just tuning, in the ratios 4:5:6:7
[Benitez, J. M. (1988). ''Contemporary Music Review: Listening 2'', p. 34. . Cites Euler (1764).] , for the dominant seventh. Others include 20:25:30:36 , found on I, and 36:45:54:64, found on V, used in
5-limit
Five-limit tuning, 5-limit tuning, or 5-prime-limit tuning (not to be confused with 5-odd-limit tuning), is any system for tuning a musical instrument that obtains the frequency of each note by multiplying the frequency of a given reference note ...
just tunings and scales.
[Wright, David (2009). ''Mathematics and Music'', pp. 140–141. .]
Today, the dominant seventh chord enjoys particular prominence in the music of
barbershop quartets, with the
Barbershop Harmony Society describing the chord as the "signature" of the barbershop sound. A song may use the chord type (built on any
scale degree, not just ), for up to 30 percent of its duration. As barbershop singers strive to harmonize in
just intonation to maximize the audibility of harmonic
overtones, the practical sonority of the chord tends to be that of a
harmonic seventh chord. This chord type has become so ingrained into the fabric of the artform that it is often referred to as the "
barbershop seventh chord" by those who practice it.
Tuning
:
Dominant seventh chord table
:
Guitar chord diagrams
In
standard tuning, the left is the low E string. x means mute the string.
Guitar Chord Name Finder
''Gootar.com''.
Dominant 7
* A7: x02020
* B7: x21202
* C7: x3231x
* D7: xx0212
* E7: 020100
* F7: 131211
* G7: 320001
Dominant 7 Sus2
* A7sus2: x02000
* B7sus2: x24222
* C7sus2: x30333
* D7sus2: x57555
* E7sus2: x79777
* F7sus2: xx3543
* G7sus2: 303033
Dominant 7 Sus4
* A7sus4: x00030
* B7sus4: x24252
* C7sus4: x35363
* D7sus4: xx0013
* E7sus4: 020200
* F7sus4: 111311
* G7sus4: 330011
See also
* Dominant ninth, etc.
* Irregular resolution
* Nondominant seventh chord
* Subtonic
* Mixolydian mode
Notes
References
External links
Dominant Chords
Theory and applications for jazz guitar
{{DEFAULTSORT:Dominant Seventh Chord
Dominant chords
Seventh chords