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C half-diminished 7th chord on piano

Cm7♭5 is a half-diminished 7th chord built on C. It uses the notes C - E♭ - G♭ - B♭ and sounds moody and searching; it often leads to a dominant chord.

C half-diminished 7th chord keyboard diagram: C, E♭, G♭, B♭CE♭G♭B♭
Notes
C E♭ G♭ B♭
Formula
1 - ♭3 - ♭5 - ♭7
Right hand fingering
1 - 2 - 3 - 5
Left hand fingering
5 - 3 - 2 - 1
Chord symbol
Cm7♭5

How to play Cm7♭5 step by step

  1. Find C. C is the white key just left of each group of two black keys.
  2. Add E♭, 3 half steps above C.
  3. Add G♭, 6 half steps above C.
  4. Add B♭, 10 half steps above C.
  5. Press all 4 keys together with fingers 1 - 2 - 3 - 5 of your right hand. Keep your wrist level and let the weight of your arm do the work.

Cm7♭5 inversions

An inversion uses the same notes in a different order. Inversions let your hand move less between chords, which is how pianists make chord changes sound smooth.

Cm7♭5 Root position: C, E♭, G♭, B♭CE♭G♭B♭
Root positionC - E♭ - G♭ - B♭
Cm7♭5 1st inversion: E♭, G♭, B♭, CCE♭G♭B♭
1st inversionE♭ - G♭ - B♭ - C
Cm7♭5 2nd inversion: G♭, B♭, C, E♭CG♭B♭E♭
2nd inversionG♭ - B♭ - C - E♭
Cm7♭5 3rd inversion: B♭, C, E♭, G♭CB♭E♭G♭
3rd inversionB♭ - C - E♭ - G♭

Frequently asked questions

What notes are in the C half-diminished 7th chord?

The C half-diminished 7th chord (Cm7♭5) contains 4 notes: C, E♭, G♭, B♭. Its formula is 1 - ♭3 - ♭5 - ♭7.

How do you play Cm7♭5 on piano?

Put your right-hand thumb on C and play C, E♭, G♭, B♭ together using fingers 1 - 2 - 3 - 5. With the left hand, use fingers 5 - 3 - 2 - 1.

Other C chords

Other half-diminished 7th chords