A7 chord on 4-String Bass – Low C
in Low C (C-A-D-G) 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 |
|---|---|---|---|---|
| 1 0 2 0 | 1 – 2 – | C# A E G | easy | |
| 4 4 5 2 | 2 3 4 1 | E C# G A | medium | |
| 4 0 5 6 | 1 – 2 3 | E A G C# | medium | |
| x 0 5 6 | – – 1 2 | x A G C# | easy | |
| 9 10 7 6 | 3 4 2 1 | A G A C# | hard | |
| 9 7 11 0 | 2 1 3 – | A E C# G | hard | |
| 9 10 11 9 | 1 2 3 1 | A G C# E | medium · barre on fret 9 | |
| x 12 11 12 | – 2 1 3 | x A C# G | easy | |
| 1 0 x 0 | 1 – – – | C# A x G | easy | |
| x 4 5 2 | – 2 3 1 | x C# G A | medium | |
| 4 4 7 0 | 1 2 3 – | E C# A G | medium | |
| 9 7 5 6 | 4 3 1 2 | A E G C# | hard | |
| 7 7 7 6 | 2 3 4 1 | G E A C# | medium | |
| 7 0 11 9 | 1 – 3 2 | G A C# E | hard | |
| 9 10 11 0 | 1 2 3 – | A G C# G | medium | |
| x 0 11 0 | – – 1 – | x A C# G | easy |
The A7 chord (Dominant 7) is built from the notes A, C#, E, G. Below are playable fingerings for 4-String Bass – Low C 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.