Ab ninth chords

Ab9 chord (also called Dominant 9th chord) for piano presented by keyboard diagrams.
Explanation: The Ab ninth is a five note chord. Due to practical circumstances, however, the fifth (Eb) is often omitted and/or the chord is played inverted. The chord is often abbreviated as Ab9.
Theory: The Ab ninth chord is constructed with a root, a major third, a perfect fifth, a minor seventh and a major ninth.

Ab9

Ab9 chord diagram
Notes: Ab - C - Eb - Gb - Bb

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Ab9 inverted

Ab9 chord diagram
One of many possible inversions

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