A7 chord on 4-String Bass – Low B
in Low B (B-E-A-D) tuning
A7
Dominant 7
Notes:A · C# · E · G
Piano Left hand Right hand
Fingerings (16)
A7 shapes as text
| Shape | Frets | Fingers | Notes | Difficulty |
|---|---|---|---|---|
| 2 3 0 2 | 1 3 – 2 | C# G A E | easy | |
| 2 5 4 5 | 1 3 2 4 | C# A C# G | medium | |
| 5 3 4 7 | 3 1 2 4 | E G C# A | hard | |
| x 5 4 5 | – 2 1 3 | x A C# G | easy | |
| x 9 0 5 | – 2 – 1 | x C# A G | hard | |
| 10 9 10 7 | 3 2 4 1 | A C# G A | medium | |
| 8 9 0 x | 1 2 – – | G C# A x | easy | |
| 10 9 10 x | 2 1 3 – | A C# G x | easy | |
| 10 12 10 11 | 1 3 1 2 | A E G C# | medium · barre on fret 10 | |
| 2 3 0 x | 1 2 – – | C# G A x | easy | |
| 2 5 x 5 | 1 2 – 3 | C# A x G | hard | |
| x 3 4 7 | – 1 2 3 | x G C# A | hard | |
| 5 5 4 5 | 2 3 1 4 | E A C# G | medium | |
| 5 9 0 5 | 1 3 – 2 | E C# A G | hard | |
| 8 9 7 7 | 3 4 1 2 | G C# E A | medium | |
| 8 9 0 11 | 1 2 – 3 | G C# A C# | medium |
The A7 chord (Dominant 7) is built from the notes A, C#, E, G. Below are playable fingerings for 4-String Bass – Low B generated for your selected tuning, ordered from open-position shapes up the neck. Tap a diagram to hear it, or switch to the piano view to see the same harmony on keys.
How the A7 chord is built
Formula: 1 · 3 · 5 · ♭7
| Degree | Semitones | Note |
|---|---|---|
| 1 | 0 | A |
| 3 | 4 | C# |
| 5 | 7 | E |
| ♭7 | 10 | G |
More A chords
Other roots
See A7 in another tuning
What notes make up the A7 chord?
A7 is a Dominant 7 chord built from the notes A, C#, E, G.
How do I read the diagram?
Strings run left to right from the lowest to the first string; the numbers show which finger presses each fret. An ○ marks an open string, an ✕ marks a muted one.