B#11 chord
The B-sharp dominant eleventh chord (abbreviated "B#11 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-sharp dominant ninth chord.
In practice, the third (D) and fifth (F) are often omitted from the B#11 chord to avoid a very dissonant sound, and because it's not always possible to play all notes simultaneously.
Name
B-sharp dominant eleventh chord
Notes
B♯ D F A♯ C E♯
Intervals
1 3 5 ♭7 9 11
Chord symbol
B♯11
Type
hexad (six-note chord)