A dim

The A dim chord consists of the A (Perfect unison), C (Minor third) and D# (Diminished fifth) notes.

Piano keyboard showing the notes for a A dim chord

How to play the A dim chord

  1. Find A (Root) on the piano keyboard
  2. Add C (Minor third) — 3 semitones above A
  3. Add D# (Diminished fifth) — 6 semitones above A
  4. Press all 3 notes simultaneously to sound the A dim chord

Related slash chords