Amaj9 chord
A major 9th
C4
A
C5
C#
E
G#
B
Want it in context? Open Amaj9 on the full piano.
Notes
- AR
- C#3
- E5
- G#7
- B9
Formula: R – 3 – 5 – 7 – 9
Amaj9 inversions
The same notes, with a different note in the bass.
Root position Amaj9
C4
A
C5
C#
E
G#
1st inversion Amaj9/C#
C5
C#
E
G#
A
C6
2nd inversion Amaj9/E
C5
E
G#
A
C6
C#
3rd inversion Amaj9/G#
C5
G#
A
C6
C#
E
More A chords
Major 9th chords in other keys
FAQ
What notes are in the Amaj9 chord?
The A major 9th chord (Amaj9) has 5 notes: A, C#, E, G# and B.
How do you play Amaj9 on the piano?
Put your right hand on A, C#, E, G# and B, starting from A. A common fingering for three-note chords is thumb (1), middle finger (3) and little finger (5).
What is the formula of a major 9th chord?
R – 3 – 5 – 7 – 9 (in semitones from the root: 0, 4, 7, 11, 14).