Cm7b5 chord on piano

C Half-Diminished. Notes: C, Eb, Gb and Bb.

Cm7b5 piano chord, root positionCC5EbGbBb
Root position. Tap any key to hear it.

How to play Cm7b5

  1. Find C at or above middle C. That is the root.
  2. Add Eb, Gb and Bb above it, skipping the keys in between.
  3. Right hand fingering: 1-2-3-5. Left hand: 5-3-2-1.

Notes

Croot
Ebb3 · minor third
Gbb5 · diminished fifth
Bbb7 · minor seventh

Cm7b5 inversions

An inversion moves the lowest note up an octave. Same notes, smoother jumps between chords.

Cm7b5 Root positionCC5EbGbBb

Root position

C · Eb · Gb · Bb
Cm7b5 1st inversionC4CEbGbBb

1st inversion

Eb · Gb · Bb · C
Cm7b5 2nd inversionC4CGbBbEb

2nd inversion

Gb · Bb · C · Eb
Cm7b5 3rd inversionC4CBbEbGb

3rd inversion

Bb · C · Eb · Gb

Notes and theory

Croot
Ebb3 · minor third
Gbb5 · diminished fifth
Bbb7 · minor seventh

The half-diminished chord (minor seventh flat five) is the ii chord of a minor key and a key part of minor ii-V-i progressions in jazz. The formula is 1 b3 b5 b7, and you will also see it written as Cø and Cm7(b5).

Keys that use Cm7b5

More C chords

All C piano chords

half-diminished chords in every key

Questions

What notes are in the Cm7b5 chord?

Cm7b5 (C half-diminished) is made of four notes: C (root), Eb (minor third), Gb (diminished fifth) and Bb (minor seventh).

How do you play Cm7b5 on piano?

Play C, Eb, Gb and Bb together. With the right hand use fingers 1-2-3-5; with the left hand use 5-3-2-1.

What are the inversions of Cm7b5?

Root position: C Eb Gb Bb. 1st inversion: Eb Gb Bb C. 2nd inversion: Gb Bb C Eb. 3rd inversion: Bb C Eb Gb.

What key is Cm7b5 in?

Cm7b5 belongs to 2 keys: D flat major (as the vii°ø7 chord) and B flat minor (as the ii°ø7 chord).

What does a half-diminished chord sound like?

The half-diminished chord (minor seventh flat five) is the ii chord of a minor key and a key part of minor ii-V-i progressions in jazz.