Diminished major seventh chord

diminished major seventh
Component intervals from root
	major seventh
	diminished fifth (tritone)
	minor third
	root
Forte no. / Complement
	4-18 / 8-18

Diminished major seventh chord.

In music theory, a diminished major seventh chord is a chord composed of a diminished triad and a major seventh.^[1] Thus it is composed of a root, minor third, diminished fifth (tritone) and major seventh. It is very dissonant, containing the dissonant intervals of the tritone and the major seventh. It is frequently encountered, especially in jazz, as a diminished seventh chord with an appoggiatura, especially when the melody has the leading note of the given chord: the ability to resolve this dissonance smoothly to a diatonic triad with the same root allows it to be used as a temporary tension before tonic resolution. It is nevertheless infrequently used as a chord in itself.

The chord can be represented by the integer notation {0, 3, 6, 11}.

Diminished major seventh chord table

Chord	Root	Minor third	Diminished fifth	Major seventh
C^o^M7	C	E♭	G♭	B
C♯^o^M7	C♯	E	G	B♯ (C)
D♭^o^M7	D♭	F♭ (E)	A (G)	C
D^o^M7	D	F	A♭	C♯
D♯^o^M7	D♯	F♯	A	C (D)
E♭^o^M7	E♭	G♭	B (A)	D
E^o^M7	E	G	B♭	D♯
F^o^M7	F	A♭	C♭ (B)	E
F♯^o^M7	F♯	A	C	E♯ (F)
G♭^o^M7	G♭	B (A)	D (C)	F
G^o^M7	G	B♭	D♭	F♯
G♯^o^M7	G♯	B	D	F (G)
A♭^o^M7	A♭	C♭ (B)	E (D)	G
A^o^M7	A	C	E♭	G♯
A♯^o^M7	A♯	C♯	E	G (A)
B♭^o^M7	B♭	D♭	F♭ (E)	A
B^o^M7	B	D	F	A♯

↑ Jamini, Deborah. (2005). Harmony And Composition: Basics to Intermediate, p.204. ISBN 978-1-4120-3333-6.

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