Chord
Fm7♭5 is a half-diminished seventh chord with the notes F, A♭, C♭, E♭. Also written Fø, F–7♭5.
| Note | Interval | Semitones |
|---|---|---|
| F | root | 0 |
| A♭ | minor 3rd | 3 |
| C♭ | diminished 5th | 6 |
| E♭ | minor 7th | 10 |
| Root position | F – A♭ – C♭ – E♭ | |
| 1st inversion | A♭ – C♭ – E♭ – F (Fm7♭5/A♭) | |
| 2nd inversion | C♭ – E♭ – F – A♭ (Fm7♭5/C♭) | |
| 3rd inversion | E♭ – F – A♭ – C♭ (Fm7♭5/E♭) |
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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