Augmented major seventh chord

In music, an augmented major seventh chord or major seventh sharp five chord is a seventh chord composed of a root, major third, augmented fifth, and major seventh (1, 3, ♯5, 7). It can be viewed as an augmented triad with an additional major seventh. When using popular-music symbols, it is denoted by e.g. +^Δ7. For example, the augmented major seventh chord built on A♭, written as e.g. A♭+^Δ7, has pitches A♭-C-E-G:

<score vorbis="1" lang="lilypond">

{ \override Score.TimeSignature #'stencil = ##f \relative c' {

  \clef treble 
  \time 4/4
  \key c \major
  <as c e g>1

} } </score>

The chord can be represented by the integer notation {0, 4, 8, 11}.

The augmented major seventh chord is associated with the augmented scale (see jazz scale and chord-scale system). This chord also comes from the third mode of both the harmonic minor and the melodic minor scales. For example, the third mode of the A melodic minor scale outlines an augmented major seventh chord, as shown below.

<score vorbis="1" lang="lilypond">

{ \override Score.TimeSignature #'stencil = ##f \relative c' {

 \clef treble \time 7/4 \key a \minor
 \once \override NoteHead.color = #red c4^\markup { "3rd mode of A melodic minor scale" } d \once \override NoteHead.color = #red e fis \once \override NoteHead.color = #red gis a \once \override NoteHead.color = #red b c2 }

} </score>

As with dominant seventh chords, nondominant seventh chords including the augmented major seventh usually progress according to the circle, thus III+^M7 resolves to vi or VI. For example, in the key of A minor, C maj^7♯5 usually resolves to F.

Augmented major seventh chord table

Chord	Root	Major third	Augmented fifth	Major seventh
C♭augM7	C♭	E♭	G	B♭
CaugM7	C	E	G♯	B
C♯augM7	C♯	E♯ (F)	Gdouble sharp (A)	B♯ (C)
D♭augM7	D♭	F	A	C
DaugM7	D	F♯	A♯	C♯
D♯augM7	D♯	Fdouble sharp (G)	Adouble sharp (B)	Cdouble sharp (D)
E♭augM7	E♭	G	B	D
EaugM7	E	G♯	B♯ (C)	D♯
E♯augM7	E♯	Gdouble sharp (A)	Bdouble sharp (C♯)	Ddouble sharp (E)
F♭augM7	F♭	A♭	C	E♭
FaugM7	F	A	C♯	E
F♯augM7	F♯	A♯	Cdouble sharp (D)	E♯ (F)
G♭augM7	G♭	B♭	D	F
GaugM7	G	B	D♯	F♯
G♯augM7	G♯	B♯ (C)	Ddouble sharp (E)	Fdouble sharp (G)
A♭augM7	A♭	C	E	G
AaugM7	A	C♯	E♯ (F)	G♯
A♯augM7	A♯	Cdouble sharp (D)	Edouble sharp (F♯)	Gdouble sharp (A)
B♭augM7	B♭	D	F♯	A
BaugM7	B	D♯	Fdouble sharp (G)	A♯
B♯augM7	B♯	Ddouble sharp (E)	Ftriple sharp (G♯)	Adouble sharp (B)

See also

• Jazz chord