G7b5 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
G4 · B4 · Db5 · F5
With bass · rootless
Left hand
Db3 · F3 · B3
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.
Other names for the G7b5 chord
Other names: G 7th flat 5
Music theory name: seventh flat five chord
Common name: G 7b5 chord
Notes and intervals in the G7b5 chord
| Note | Interval |
|---|---|
| G | Root |
| B | Major 3rd |
| Db | Diminished 5th |
| F | Minor 7th |
Inversions
1st inversion
B4 · Db5 · F5 · G5
2nd inversion
Db5 · F5 · G5 · B5