A dominant 7th chord (A7)
A7 has 4 notes: A C# E G. Its formula is 1 3 5 ♭7.
| Degree | 1 | 3 | 5 | ♭7 |
|---|---|---|---|---|
| Note | A | C# | E | G |
How to play A7 on guitar
Every shape from open position up the neck. Amber dots are the root; the numbers under each box are the chord degrees. Press a button to hear it.
A shape
Open position
G shape
Fret 2
E shape
Fret 5
D shape
Fret 7
C shape
Fret 10 · Partial
A shape
Fret 12