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How to Read Guitar Chord Diagrams
Learn how to read guitar chord diagrams quickly. Understand dots, numbers, Xs, Os, and finger positions so you can play any chord chart at sight.
G♭min7(♭5)/B♭♭ guitar shapes
Popular fretboard positions with fingering suggestions
Showing 8 of 70 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: 70
Chord tones
G♭B♭♭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.
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