Ab7b5 Piano Chord
A tense jazz chord with a tritone replacing the perfect fifth. Often serves as a tritone substitution in jazz progressions — replacing the classic dominant seventh chord.
Recommended voicing
Ab3 · C4 · D4 · F#4
With bass · rootless
Left hand
D3 · F#3 · C4
fingers 5–3–1
Right hand
Free
melody / improvisation
Jazz accompaniment with a bass player: the bass supplies the root, leaving the right hand free for melody or improvisation.
Notation for Ab7b5 chord
Other names: Ab 7th flat 5
Music theory name: seventh flat five chord
Common name: Ab 7b5 chord
Intervals and tones in Ab7b5 chord
| Note | Interval |
|---|---|
| Ab | Root |
| C | Major 3rd |
| D | Diminished 5th |
| F# | Minor 7th |
Inversions
1st inversion
C4 · D4 · F#4 · Ab4
2nd inversion
D4 · F#4 · Ab4 · C5