How to Play Aadd9 on Piano
The A Add 9 chord sounds bright and open. It stacks 4 notes: A – C# – E – B.
A plain major triad with a ninth added and no seventh. The gap where the seventh would be is what keeps it sounding clear rather than jazzy.
Notes in Aadd9
| Note | Interval | Finger |
|---|---|---|
| AA4 | Root | 1 |
| C#C#5 | Major 3rd | 2 |
| EE5 | Perfect 5th | 3 |
| BB5 | Major 9th | 5 |
How to Play
Right Hand
Place your thumb (finger 1) on A. Use finger 2 on C#, finger 3 on E, and finger 5 on B.
Where it sits
One note of this chord (C#) is on black keys, so play it a little further back on the keys than an all-white shape.
Press all 4 keys at the same time. Keep your wrist relaxed and your fingers curved. The blue dots on the piano below show exactly which keys to press — they turn green when you play the right note.