Gmin7(♭5)/B♭ guitar shapes

Popular fretboard positions with fingering suggestions

Showing 8 of 45 playable shapes

About the chord

G minor 7th flat 5 / B♭ (1st inversion)

The G minor 7th flat 5 minor 7th flat 5 chord, also known as half-diminished, combines the diminished triad with a minor seventh F, producing a haunting, unresolved tension. It is essential in jazz harmony for its sophisticated, somber sound. With B♭ in the bass, this voicing functions as the 1st inversion of G minor 7th flat 5.

Root note: G
Bass note: B♭
Chord tones: 4
Playable shapes: 45

Chord tones

GB♭D♭F

Notes & Intervals

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

G Unison (Root) 1

The root anchors the chord and defines its tonal center.

B♭ Minor Third ♭3

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

D♭ Diminished Fifth ♭5

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

F 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.