Ab major ninth chord

Abmaj9 chord for piano with keyboard diagram.
Explanation: The Ab major ninth is a five note chord and can be regarded as a Abmaj7 with an added ninth. It is often abbreviated as Abmaj9 (should not be confused with Ab9).
Theory: The Abmaj9 chord is constructed with a root, a major third, a perfect fifth, a major seventh and a major ninth.

Abmaj9

Abmaj9 chord diagram
Notes: Ab - C - Eb - G - Bb

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Ab chord categories

Ab Abm Ab7 Abm7 Abmaj7 Ab6 Abm6 Ab6/9 Ab5 Ab9 Abm9 Abmaj9 Ab11 Ab13 Abadd Ab7-5 Ab7+5 Absus Abdim Abaug