A9 chord (A9) on guitar and piano

Home
›
A9
The A9 chord (A9) is made of the notes A, B, C#, E and G. It is built from the root A with a ninth, a major third, a perfect fifth and a minor seventh.
The ninth chord enriches the dominant seventh; you find it in funk, blues and jazz.

A9

Notes: A – B – C# – E – G
Guitar — positions on the neck
A9×1423A95131214
Piano — root position and inversions
A9C12345A B C# E GA9C12345B C# E G AA9C12345C# E G A BA9CC12345E G A B C#A9C12345G A B C# E

Fingerings and positions

On guitar, this chord can be played in 2 ways along the neck. It is most often played with a barre. Example fingering (from the low E string to the high E string, x = muted string): x02423. On piano, the right hand plays 5 notes, in root position or in an inversion.

Notes and intervals

Note
Interval
A
root
B
ninth
C#
major third
E
perfect fifth
G
minor seventh

Neighbouring chords

Try it in the app

Hear the chords, play them as a progression, switch instrument, note names (Do Ré Mi or C D E) and theme:

Frequently asked questions

What are the notes of the A9 chord?

The notes of the A9 chord (A9) are A, B, C#, E and G.

How do you play the A9 chord on guitar?

On guitar, this chord can be played in 2 ways along the neck. It is most often played with a barre. Example fingering (from the low E string to the high E string, x = muted string): x02423.

How is the A9 chord built?

The A9 chord (A9) is made of the notes A, B, C#, E and G. It is built from the root A with a ninth, a major third, a perfect fifth and a minor seventh.