A# m9(#11)

The A# m9(#11) chord consists of the A# (Perfect unison), C# (Minor third), F (Perfect fifth), G# (Minor seventh), C (Major ninth) and E (Augmented eleventh) notes.

Piano keyboard showing the notes for a A# m9(#11) chord

How to play the A# m9(#11) chord

  1. Find A# (Root) on the piano keyboard
  2. Add C# (Minor third) — 3 semitones above A#
  3. Add F (Perfect fifth) — 7 semitones above A#
  4. Add G# (Minor seventh) — 10 semitones above A#
  5. Add C (Major ninth) — 14 semitones above A#
  6. Add E (Augmented eleventh) — 18 semitones above A#
  7. Press all 6 notes simultaneously to sound the A# m9(#11) chord