A# 11

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

Piano keyboard showing the notes for a A# 11 chord

How to play the A# 11 chord

  1. Find A# (Root) on the piano keyboard
  2. Add D (Major third) — 4 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 D# (Perfect eleventh) — 17 semitones above A#
  7. Press all 6 notes simultaneously to sound the A# 11 chord