A9 chord on 6-String Guitar – Open G
in Open G (D-G-D-G-B-D) tuning · Also known as Spanish, Taro Patch, Slack Key G
A9
Dominant 9
Notes:A · C# · E · G · B
Piano Left hand Right hand
Fingerings (16)
A9 shapes as text
| Shape | Frets | Fingers | Notes | Difficulty |
|---|---|---|---|---|
| x 2 2 6 0 5 | – 1 2 4 – 3 | x A E C# B G | hard | |
| x 2 2 4 2 5 | – 1 1 2 1 3 | x A E B C# G | medium · barre on fret 2 | |
| 7 4 5 6 0 x | 4 1 2 3 – – | A B G C# B x | medium | |
| 7 6 5 0 0 5 | 4 3 1 – – 2 | A C# G G B G | medium | |
| 7 6 7 0 0 7 | 2 1 3 – – 4 | A C# A G B A | medium | |
| 7 9 7 0 0 11 | 1 2 1 – – 3 | A E A G B C# | hard · barre on fret 7 | |
| 9 9 9 0 10 11 | 1 1 1 – 2 3 | B E B G A C# | medium · barre on fret 9 | |
| x 2 5 6 0 2 | – 1 3 4 – 2 | x A G C# B E | hard | |
| x 2 5 4 2 2 | – 1 3 2 1 1 | x A G B C# E | medium · barre on fret 2 | |
| 7 6 5 4 0 x | 4 3 2 1 – – | A C# G B B x | medium | |
| 7 6 5 0 0 7 | 3 2 1 – – 4 | A C# G G B A | medium | |
| 7 6 7 0 0 x | 2 1 3 – – – | A C# A G B x | easy | |
| 7 9 9 0 0 11 | 1 2 3 – – 4 | A E B G B C# | hard | |
| 11 0 9 9 10 9 | 3 – 1 1 2 1 | C# G B E A B | medium · barre on fret 9 | |
| x 2 5 6 0 5 | – 1 2 4 – 3 | x A G C# B G | hard | |
| x 2 5 4 2 5 | – 1 3 2 1 4 | x A G B C# G | medium · barre on fret 2 |
The A9 chord (Dominant 9) is built from the notes A, C#, E, G, B. Below are playable fingerings for 6-String Guitar – Open G 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 A9 chord is built
Formula: 1 · 3 · 5 · ♭7 · 9
| Degree | Semitones | Note |
|---|---|---|
| 1 | 0 | A |
| 3 | 4 | C# |
| 5 | 7 | E |
| ♭7 | 10 | G |
| 9 | 14 | B |
More A chords
Other roots
See A9 in another tuning
What notes make up the A9 chord?
A9 is a Dominant 9 chord built from the notes A, C#, E, G, B.
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.