A9 chord on Zhongruan – A-D-A-D
in A-D-A-D tuning
A9
Dominant 9
Notes:A · C# · E · G · B
Piano Left hand Right hand
Fingerings (8)
A9 shapes as text
| Shape | Frets | Fingers | Notes | Difficulty |
|---|---|---|---|---|
| 0 9 10 11 | – 1 2 3 | A B G C# | medium | |
| 0 11 10 9 | – 3 2 1 | A C# G B | medium | |
| 12 9 10 11 | 4 1 2 3 | A B G C# | medium | |
| 12 11 10 9 | 4 3 2 1 | A C# G B | medium | |
| 10 9 0 11 | 2 1 – 3 | G B A C# | medium | |
| 10 11 0 9 | 2 3 – 1 | G C# A B | medium | |
| 10 9 12 11 | 2 1 4 3 | G B A C# | medium | |
| 10 11 12 9 | 2 3 4 1 | G C# A B | medium |
The A9 chord (Dominant 9) is built from the notes A, C#, E, G, B. Below are playable fingerings for Zhongruan – A-D-A-D 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.