root position: Aadd9
A – C♯ – E – B
Aadd9 Piano Chord
The A add9 chord (Aadd9) is made of the notes A, C♯, E and B. Its formula is 1 – 3 – 5 – 9.
Notes in Aadd9
| Note | Formula | Interval from root |
|---|---|---|
| A | 1 | root |
| C♯ | 3 | major 3rd |
| E | 5 | perfect 5th |
| B | 9 | major 9th |
How to play Aadd9 on piano
- Right hand: fingers 1-2-3-5
- Left hand: fingers 5-3-2-1
Fingers are numbered from the thumb (1) to the little finger (5).
Aadd9 inversions
1st inversion: Aadd9/C#
C♯ – E – A – B
2nd inversion: Aadd9/E
E – A – B – C♯
Other names for Aadd9
Aadd9 is also written as Aadd2.
Keys that contain Aadd9
Aadd9 is not one of the basic chords of any major or minor key. It is usually used as a passing or colour chord.