Am7♭5
Half-dim · A – C – D♯ – G
- AR
- Cm3
- D♯♭5
- G♭7
Guitar voicings
Piano
- Root
- Third / sus
- Fifth
- Sixth / seventh
- Extension
About the Am7♭5 chord
The Am7♭5 chord (Half-dim) is built from A (the root), C (a minor third), D♯ (a diminished fifth) and G (a minor seventh). Half-diminished chords are moody and jazzy — most often the ii chord in a minor key.