The B-sharp major seventh chord (abbreviated "B#maj7 chord") is a four-note chord consisting of the notes B, D, F, and A. The chord is formed by adding a major seventh to a B-sharp major chord.

Name
B-sharp major seventh chord
Notes
B D F A
Intervals
1 3 5 7
Chord symbol
Bmaj7
Alternative symbols
B B7 Bma7 BMA7 BM7
Type
Tetrad (four-note chord)

B#maj7 chord on piano

B#maj7 chord on guitar

B#maj7 chord on ukulele

B#maj7 chord on the staff