root position: A7
A – C♯ – E – G
A7 Piano Chord
The A dominant 7 chord (A7) is made of the notes A, C♯, E and G. Its formula is 1 – 3 – 5 – ♭7.
Notes in A7
| Note | Formula | Interval from root |
|---|---|---|
| A | 1 | root |
| C♯ | 3 | major 3rd |
| E | 5 | perfect 5th |
| G | ♭7 | minor 7th |
How to play A7 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).
A7 inversions
1st inversion: A7/C#
C♯ – E – G – A
2nd inversion: A7/E
E – G – A – C♯
3rd inversion: A7/G
G – A – C♯ – E
Other names for A7
A7 is also written as Adom7.