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