A9 Guitar Chord

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A9 is a dominant 9th chord made of A · C♯ · E · G · B. A 7th chord with the 9th added — funky and bluesy. The standard shape is a barre chord at fret 5: 575657 (6th string → 1st string, x = don't play, 0 = open string).

Chord charts

Fret 5 barre · root on 6th string · 575657 · from fret 5

Open position · root on 5th string · x02423

Open position · root on 6th string · 542000

Fret 6 · root on 4th string · xx7687 · from fret 6

Fret 11 · root on 5th string · x-12-11-12-12-x · from fret 11

Barre fret 5 with your index finger, from string 6 to string 2.
Middle finger on string 3 (G), fret 6.
Ring finger on string 5 (A), fret 7.
Pinky finger on string 1 (e), fret 7.
Strum down from string 6.

A9 guitar chord chart — fret 5 barre 575657 and 3 more shapes — All A9 shapes on one image — long-press (or right-click) to save it.

Notes in the chord

A
rootC♯
3rdE
5thG
7thB
9th

Play it easier with a capo

There's no convenient open shape to capo for this chord — the barre shape is the way to go.

Try it: capo on

Scales that fit

Other A chords

A Am A7 Amaj7 Am7 A6 Am6 Asus4 Asus2 A7sus4 Adim Adim7 Am7b5 Aaug Aadd9 A9 Am9 Amaj9

Dominant 9th chords in other keys

C9 C♯9 D9 E♭9 E9 F9 F♯9 G9 A♭9 A9 B♭9 B9

FAQ

What notes are in the A9 chord?

The A9 chord is made of A, C♯, E, G, B. A 7th chord with the 9th added — funky and bluesy.

What's the easiest way to play A9 on guitar?

The standard shape, from the 6th string to the 1st, is 575657 (a barre chord at fret 5). Barre with your index finger and form the shape with the other fingers.

Which scale works for soloing over A9?

A mixolydian or A blues fits well.

🎸 Transpose a whole chord sheet — Buskermate
Upload a PDF song sheet and Buskermate reads the chords and moves them to any key or capo position (the app is in Korean for now).