Nondominant seventh chord

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Incomplete dominant seventh chord in C major.png
Dominant seventh (V7) and incomplete dominant seventh (viio) in C major: G7 and bo chords Loudspeaker.svg Play  .
III+7M chord in C minor.png
III+ 7
M
chord in C harmonic or ascending melodic minor [1] Loudspeaker.svg Play  .
Major seventh chord on F.png
Major seventh chord on F Loudspeaker.svg Play  . IV7 in C major. [2]
Minor major seventh chord on C.png
Minor major seventh chord on C.
i7
M
in C melodic or ascending melodic minor. [1]
Minor seventh chord on C.png
Minor-minor (i7) seventh chord on C [1] Loudspeaker.svg Play  .
Nondominant seventh chord resolution along a circle progression, the seventh resolves down by step to the third of the next chord: I -IV
Play (help*info)
. B resolves to A. Nondominant seventh chord resolution.png
Nondominant seventh chord resolution along a circle progression, the seventh resolves down by step to the third of the next chord: I –IV Loudspeaker.svg Play  . B resolves to A.

In music theory, a nondominant seventh chord is both a diatonic chord and a seventh chord, but it does not possess dominant function, [2] and thus it is not a dominant seventh chord.

Since the V and viio chords are the dominant function chords, [2] the "major minor seventh" V7 and "half-diminished seventh" viiø7 are the dominant seventh chords. Since the nondominant function chords are I, i, ii, iio, iii, III, IV, iv, vi, and VI, [2] the nondominant seventh chord qualities include the augmented major seventh chord, major seventh chord, minor major seventh chord, minor seventh chord, and major minor seventh chords that do not possess dominant function, such as, in melodic minor, IV 7
m
.

To analyze seventh chords indicate the quality of the triad; major: I, minor: ii, half-diminished: viiø, or augmented: III+; and the quality of the seventh; same: 7, or different: 7
M
or 7
m
. [2] With chord letters used to indicate the root and chord quality, and add 7, thus a seventh chord on ii in C major (minor minor seventh) would be d7. [1]

As with dominant seventh chords, nondominant seventh chords usually progress according to the circle progression, thus III+ 7
M
resolves to vi or VI, [4] for example.

Nondominant seventh chords are, "found in large number," in popular music and jazz ("a legacy from the romantic period"), such as in this example from "Try To Remember" (The Fantasticks) by Harvey Schmidt (lyrics: Tom Jones)
Play (help*info)
. Note the circle progression derived root motion by fourths/fifths. "Try To Remember" nondominant seventh chords.png
Nondominant seventh chords are, "found in large number," in popular music and jazz ("a legacy from the romantic period"), such as in this example from "Try To Remember" ( The Fantasticks ) by Harvey Schmidt (lyrics: Tom Jones) Loudspeaker.svg Play  . Note the circle progression derived root motion by fourths/fifths.

When possible, as in circle progressions, resolve the seventh of nondominant seventh chords down by step to the third of the following chord. [3]

ii -V -I turnaround in C
Play (help*info)
. Ii7-V7-I turnaround in C.png
ii –V –I turnaround in C Loudspeaker.svg Play  .

See also

Sources

  1. 1 2 3 4 Benward & Saker (2003). Music: In Theory and Practice, Vol. I, p.230. Seventh Edition. ISBN   978-0-07-294262-0.
  2. 1 2 3 4 5 Benward & Saker (2003), p.229.
  3. 1 2 Benward & Saker (2003), p.233-34.
  4. 1 2 Benward & Saker (2003), p.232.

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