Cmin7(♭5)/G♭ guitar shapes

Popular fretboard positions with fingering suggestions

Showing 8 of 18 playable shapes

About the chord

C minor 7th flat 5 / G♭ (2nd inversion)

The C minor 7th flat 5 minor 7th flat 5 chord, also known as half-diminished, combines the diminished triad with a minor seventh B♭, producing a haunting, unresolved tension. It is essential in jazz harmony for its sophisticated, somber sound. With G♭ in the bass, this voicing functions as the 2nd inversion of C minor 7th flat 5.

Root note: C
Bass note: G♭
Chord tones: 4
Playable shapes: 18

Chord tones

CE♭G♭B♭

Notes & Intervals

Each note below shows how the chord is built from its root. This is the theory layer underneath the fretboard shapes.

C Unison (Root) 1

The root anchors the chord and defines its tonal center.

E♭ Minor Third ♭3

This note supplies the minor color and gives the chord its darker emotional pull.

G♭ Diminished Fifth ♭5

The flattened fifth adds tension and a restless, unstable edge.

B♭ Minor Seventh ♭7

The minor seventh adds bluesy or jazzy tension that wants to move onward.

Related Articles

Articles that reference this chord and explain how to use it in your playing.