A m7(b9)

The A m7(b9) chord consists of the A (Perfect unison), C (Minor third), E (Perfect fifth), G (Minor seventh) and A# (Minor ninth) notes.

Piano keyboard showing the notes for a A m7(b9) chord

How to play the A m7(b9) chord

  1. Find A (Root) on the piano keyboard
  2. Add C (Minor third) — 3 semitones above A
  3. Add E (Perfect fifth) — 7 semitones above A
  4. Add G (Minor seventh) — 10 semitones above A
  5. Add A# (Minor ninth) — 13 semitones above A
  6. Press all 5 notes simultaneously to sound the A m7(b9) chord

Inversions with same root

Related chords with different root

Related slash chords