A 3

The A 3 chord consists of the A (Perfect unison) and C# (Major third) notes.

Piano keyboard showing the notes for a A 3 chord

How to play the A 3 chord

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