B♭ Major 7th Sharp 11
Bbmaj7#11 · Root
Every chord tone stacked from the root up.
Click keys to experiment with the chord
B♭ – D – F – A – E
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 Bbmaj7#11 chord sounds distinctive, with a major 7th sharp 11 character. Its notes are Bb, D, F, A, E. This chord is commonly heard in jazz.