Root on A string
no fifthx-12-11-12-12-x
A9 chord on guitar
A9 is the A dominant 9 chord. Its notes are A, C♯, E, G and B. A dominant seventh with a ninth added. Try it in a blues turnaround.
How to play A9
Numbers show frets from the low E string to the high e string; x means don't play that string.
What's in A9
- A1
- C♯3
- E5
- G♭7
- B9
- Formula
- 1 · 3 · 5 · ♭7 · 9
- Also written
- A9
- Chord type
- Dominant 9
A9 notes across the neck
Every A, C♯, E, G and B on the first 12 frets. The filled dots are the root, A. Build your own shape from any nearby group.
Related chords
Other A chords
Other dominant 9 chords