How to Play A9 on Piano

The A Dominant 9th chord sounds rich and funky. It stacks 5 notes: A – C# – E – G – B.

A dominant seventh with the ninth stacked above it. It keeps the seventh chord tension and adds colour over the top.

Notes in A9

NoteIntervalFinger
AA4Root1
C#C#5Major 3rd2
EE5Perfect 5th3
GG5Minor 7th4
BB5Major 9th5

How to Play

Right Hand

Place your thumb (finger 1) on A. Spread your fingers across all 5 notes, one finger per key.

Where it sits

One note of this chord (C#) is on black keys, so play it a little further back on the keys than an all-white shape.

Press all 5 keys at the same time. Keep your wrist relaxed and your fingers curved. The blue dots on the piano below show exactly which keys to press — they turn green when you play the right note.

Other Dominant 9th Chords

C9
C – E – G – Bb – D
Db9
Db – F – Ab – Cb – Eb
D9
D – F# – A – C – E
Eb9
Eb – G – Bb – Db – F
E9
E – G# – B – D – F#
F9
F – A – C – Eb – G
F#9
F# – A# – C# – E – G#
G9
G – B – D – F – A
Ab9
Ab – C – Eb – Gb – Bb
Bb9
Bb – D – F – Ab – C
B9
B – D# – F# – A – C#

Other A Chords

A6
A – C# – E – F#
A7
A – C# – E – G
A
A – C# – E
Am
A – C – E
Amaj7
A – C# – E – G#
Am7
A – C – E – G
Adim
A – C – Eb
Aaug
A – C# – E#
Asus2
A – B – E
Asus4
A – D – E
Adim7
A – C – Eb – Gb
Am6
A – C – E – F#
Aadd9
A – C# – E – B