A addb9

The A addb9 chord consists of the A (Perfect unison), C# (Major third), E (Perfect fifth) and A# (Minor ninth) notes.

Piano keyboard showing the notes for a A addb9 chord

How to play the A addb9 chord

  1. Find A (Root) on the piano keyboard
  2. Add C# (Major third) — 4 semitones above A
  3. Add E (Perfect fifth) — 7 semitones above A
  4. Add A# (Minor ninth) — 13 semitones above A
  5. Press all 4 notes simultaneously to sound the A addb9 chord

Related chords with different root

Related slash chords