Chord
Gm7♭5 is a half-diminished seventh chord with the notes G, B♭, D♭, F. Also written Gø, G–7♭5.
| Note | Interval | Semitones |
|---|---|---|
| G | root | 0 |
| B♭ | minor 3rd | 3 |
| D♭ | diminished 5th | 6 |
| F | minor 7th | 10 |
| Root position | G – B♭ – D♭ – F | |
| 1st inversion | B♭ – D♭ – F – G (Gm7♭5/B♭) | |
| 2nd inversion | D♭ – F – G – B♭ (Gm7♭5/D♭) | |
| 3rd inversion | F – G – B♭ – D♭ (Gm7♭5/F) |
A half-diminished chord (m7♭5) is a diminished triad with a minor 7th added. It is the vii chord of major keys and the ii chord of minor keys, as in the minor ii–V–i.
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