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Cm7♭5 Chord on Guitar

Cm7♭5 is the C half-diminished (ø) chord — 4 notes (C, E♭, G♭, B♭) built from the formula 1 ♭3 ♭5 ♭7. Below are playable shapes across the fretboard, the keys it belongs to and the scales to use when soloing over it.

Notes: C · E♭ · G♭ · B♭Formula: 1 · ♭3 · ♭5 · ♭7Hear it and see it on the fretboard ▸

Cm7♭5: Chord shapes (open & barre)

  • Cm7♭5 – fret 1×R♭3♭7R♭5fret 1
  • Cm7♭5 – fret 33×R♭5♭7♭3♭7fret 3
  • Cm7♭5 – fret 88R♭5♭7♭3♭7Rfret 8
  • Cm7♭5 – fret 1010××R♭5♭7♭3fret 10
  • Cm7♭5 – fret 1313×R♭3♭7R♭5fret 13

Cm7♭5: Drop 2 voicings

  • Cm7♭5 – bass: ♭5♭5R♭3♭7××bass: ♭5
  • Cm7♭5 – bass: ♭58×♭5R♭3♭7×bass: ♭5
  • Cm7♭5 – bass: ♭54××♭5R♭3♭7bass: ♭5
  • Cm7♭5 – bass: ♭74♭7♭3♭5R××bass: ♭7
  • Cm7♭5 – bass: ♭711×♭7♭3♭5R×bass: ♭7
  • Cm7♭5 – bass: ♭77××♭7♭3♭5Rbass: ♭7
  • Cm7♭5 – bass: R8R♭5♭7♭3××bass: R
  • Cm7♭5 – bass: R×R♭5♭7♭3×bass: R
  • Cm7♭5 – bass: R10××R♭5♭7♭3bass: R
  • Cm7♭5 – bass: ♭310♭3♭7R♭5××bass: ♭3
  • Cm7♭5 – bass: ♭35×♭3♭7R♭5×bass: ♭3
  • Cm7♭5 – bass: ♭3××♭3♭7R♭5bass: ♭3

Cm7♭5: Drop 3 voicings

  • Cm7♭5 – bass: ♭310♭3×R♭5♭7×bass: ♭3
  • Cm7♭5 – bass: ♭35×♭3×R♭5♭7bass: ♭3
  • Cm7♭5 – bass: ♭5♭5×♭3♭7R×bass: ♭5
  • Cm7♭5 – bass: ♭58×♭5×♭3♭7Rbass: ♭5
  • Cm7♭5 – bass: ♭74♭7×♭5R♭3×bass: ♭7
  • Cm7♭5 – bass: ♭711×♭7×♭5R♭3bass: ♭7
  • Cm7♭5 – bass: R7R×♭7♭3♭5×bass: R
  • Cm7♭5 – bass: R×R×♭7♭3♭5bass: R

Cm7♭5: Shell voicings (jazz)

  • Cm7♭5 – R-3-76R♭3♭7×××R-3-7
  • Cm7♭5 – R-3-7×R♭3♭7××R-3-7
  • Cm7♭5 – R-7-38R×♭7♭3××R-7-3
  • Cm7♭5 – R-7-3×R×♭7♭3×R-7-3

Keys that contain Cm7♭5

Scales to play over Cm7♭5

Ordered from the most common choice. All of them contain C, E♭, G♭, B♭.

Other C chords

Triads

Sevenths

Sixths

Added

Extended

Half-diminished (ø) chords in other keys

FAQ

What notes are in the Cm7♭5 chord?
Cm7♭5 (C half-diminished (ø)) contains C, E♭, G♭, B♭ — formula 1 ♭3 ♭5 ♭7.
How do you play Cm7♭5 on guitar?
A common shape is x31312 (low E to high E, x = muted string, around fret 1). This page shows more shapes, drop 2, drop 3 and shell voicings in the interactive library.
What scale goes with Cm7♭5?
Good choices to solo over Cm7♭5: C Locrian, C Locrian ♮2, C Blues.
What key is Cm7♭5 in?
Cm7♭5 is diatonic in D♭ major (viiø7), B♭ minor (iiø7).