Ab 13th chord
Ab13 chord for piano presented by keyboard diagrams.
Explanation: The A flat thirteenth is a seven-note chord. Due to practical circumstances, some notes (as a suggestion fifth, ninth, and eleventh) are omitted and the chord is played inverted. The chord is sometimes played with both hands. The chord is often abbreviated as Ab13.
Omissions: Ab13(no3): Ab - Eb - Gb - Bb - Db - F; Ab13(no5): Ab - C - Gb - Bb - Db - F.
Theory: The Ab thirteenth chord is constructed by adding a third to an eleventh chord.
Notes: Ab - C - Eb - Gb - Bb - Db - F