A♭ Major 7th Sharp 11
Abmaj7#11 · Root
Every chord tone stacked from the root up.
Click keys to experiment with the chord
A♭ – C – E♭ – G – D
1 – 3 – 5 – 7 – #11
The Lydian major seventh is a stable tonic or IV-chord color, using the fourth mode of the major scale. It may remain in place rather than resolve; piano voicings often omit the 5th, while #11 replaces the natural 11 that would clash with the 3rd.
The Abmaj7#11 chord sounds distinctive, with a major 7th sharp 11 character. Its notes are Ab, C, Eb, G, D. This chord is commonly heard in jazz.