A9 Piano Chord
A full, rich sound. A staple chord of funk and R&B music. Automatically includes the seventh — if you don't want it, use add9.
Recommended voicing
Left hand
A2 · G3
fingers 5–1
Right hand
C#4 · B4
fingers 1–5
With bass · rootless
Left hand
C#3 · E3 · G3 · B3
fingers 5–3–2–1
Right hand
Free
melody / improvisation
Jazz accompaniment with a bass player: the bass supplies the root, leaving the right hand free for melody or improvisation.
Notation for A9 chord
Other names: A dominant 9th, A 9th, A 9
Music theory name: dominant ninth chord
Common name: A ninth chord
Intervals and tones in A9 chord
| Note | Interval |
|---|---|
| A | Root |
| C# | Major 3rd |
| E | Perfect 5th |
| G | Minor 7th |
| H | Major 9th |