Bbmaj11 chord
The B-flat major eleventh chord (abbreviated "Bbmaj11 chord") is a six-note chord consisting of the notes B♭, D, F, A, C, and E♭. The chord is formed by adding an eleventh to a B-flat major ninth chord.
In practice, the fifth (F) is often omitted from the Bbmaj11 chord to avoid a very dissonant sound, and because it's not always possible to play all notes simultaneously.
Name
B-flat major eleventh chord
Notes
B♭ D F A C E♭
Intervals
1 3 5 7 9 11
Chord symbol
B♭maj11
Alternative symbols
B♭▵11 B♭ma11 B♭MA11 B♭M11
Type
hexad (six-note chord)