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
B11
Type
hexad (six-note chord)

B#11 chord on piano

B#11 chord on guitar

B#11 chord on ukulele

B#11 chord on the staff