Cm7b5 Piano Chord
A key chord of minor jazz. Occurs naturally as the ii chord in minor keys (in ii–V–i progressions). Less tense than the fully diminished seventh chord.
Recommended voicing
C4 · Eb4 · Gb4 · Bb4
With bass · rootless
Left hand
Gb3 · Bb3 · Eb4
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 Cm7b5 chord
Other names: C minor 7th flat 5, C half-diminished, Cø7, Cm7♭5
Music theory name: half-diminished seventh chord
Common name: C half-diminished chord
Notes and intervals in the Cm7b5 chord
| Note | Interval |
|---|---|
| C | Root |
| Eb | Minor 3rd |
| Gb | Diminished 5th |
| Bb | Minor 7th |
Inversions
1st inversion
Eb4 · Gb4 · Bb4 · C5
2nd inversion
Gb4 · Bb4 · C5 · Eb5