A9 chord on guitar
The A9 chord diagram on guitar, the notes it is built from, and the Alviena charts that use it.
The diagram
The notes in A9
A · E · B · C# · G
The chord is built from 5 distinct pitches. A shape may double them an octave apart: the same note then appears more than once without changing the chord.
The shape, string by string
1 open string · 1 muted string
| String | Fret | Note |
|---|---|---|
| 5 | open | A |
| 4 | 2 | E |
| 3 | 4 | B |
| 2 | 2 | C# |
| 1 | 3 | G |