Major seventh flat five chord

major seventh flat five chord
Component intervals from root
	major seventh
	diminished fifth (tritone)
	major third
	root

In music theory, the major seventh flat five chord is a seventh chord composed of a root note, together with a major third, a diminished fifth, and a major seventh above the root (1, ♮3, ♭5 and ♮7). For example, the dominant seventh flat five chord built on C, commonly written as C^{M7♭5 or CΔ^♭5, is composed of the pitches C–E–G♭–B:

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

  \clef treble 
  \time 4/4
  \key c \major
  <c e ges b>1

} } </score>

The chord can be represented by the integer notation {0, 4, 6, 11}.

In jazz harmony, the major seventh flat five may be considered an altered chord, created by lowering the fifth of a major seventh chord.

Major seventh flat five chord table

Chord	Root	Major third	Diminished fifth	Major seventh
CΔ^♭5	C	E	G♭	B
C♯Δ^♭5	C♯	E♯ (F)	G	B♯ (C)
D♭Δ^♭5	D♭	F	A (G)	C
DΔ^♭5	D	F♯	A♭	C♯
D♯Δ^♭5	D♯	F (G)	A	C (D)
E♭Δ^♭5	E♭	G	B (A)	D
EΔ^♭5	E	G♯	B♭	D♯
FΔ^♭5	F	A	C♭ (B)	E
F♯Δ^♭5	F♯	A♯	C	E♯ (F)
G♭Δ^♭5	G♭	B♭	D (C)	F
GΔ^♭5	G	B	D♭	F♯
G♯Δ^♭5	G♯	B♯ (C)	D	F (G)
A♭Δ^♭5	A♭	C	E (D)	G
AΔ^♭5	A	C♯	E♭	G♯
A♯Δ^♭5	A♯	C (D)	E	G (A)
B♭Δ^♭5	B♭	D	F♭ (E)	A
BΔ^♭5	B	D♯	F	A♯

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