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Abmaj9 chord

Ab major 9th · also written G#maj9

C4
Ab
C
Eb
G
Bb

Want it in context? Open Abmaj9 on the full piano.

Notes

  • Ab
    R
  • C
    3
  • Eb
    5
  • G
    7
  • Bb
    9

Formula: R – 3 – 5 – 7 – 9

Abmaj9 inversions

The same notes, with a different note in the bass.

Root position Abmaj9

C4
Ab
C
Eb
G

1st inversion Abmaj9/C

C
Eb
G
Ab
C6

2nd inversion Abmaj9/Eb

C5
Eb
G
Ab
C

3rd inversion Abmaj9/G

C5
G
Ab
C
Eb

FAQ

What notes are in the Abmaj9 chord?

The Ab major 9th chord (Abmaj9) has 5 notes: Ab, C, Eb, G and Bb.

How do you play Abmaj9 on the piano?

Put your right hand on Ab, C, Eb, G and Bb, starting from Ab. 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).

Is Abmaj9 the same as G#maj9?

Yes. Ab and G# are the same key on the piano (enharmonic), so Abmaj9 and G#maj9 sound the same.