Chord
Am7♭5 is a half-diminished seventh chord with the notes A, C, E♭, G. Also written Aø, A–7♭5.
| Note | Interval | Semitones |
|---|---|---|
| A | root | 0 |
| C | minor 3rd | 3 |
| E♭ | diminished 5th | 6 |
| G | minor 7th | 10 |
| Root position | A – C – E♭ – G | |
| 1st inversion | C – E♭ – G – A (Am7♭5/C) | |
| 2nd inversion | E♭ – G – A – C (Am7♭5/E♭) | |
| 3rd inversion | G – A – C – E♭ (Am7♭5/G) |
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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