Ab minor 13th chord
Abm13 chord for piano with keyboard diagram.
Explanation: The A flat minor thirteenth is a seven-note chord. For practical reasons the chord is normally played with omitted notes and/or inverted. The chord is often abbreviated as Abm13 (alternatively Abmin13).
Omissions: Abm13(no11): Ab - B - Eb - Gb - Bb - F.
Theory: The Ab minor thirteenth chord is constructed by extending the minor eleventh chord with a major thirteenth note.
Notes: Ab - B - Eb - Gb - Bb - Db - F / Ab - Cb - Eb - Gb - Bb - Db - F