The B-sharp dominant seventh suspended fourth chord (abbreviated "B#7sus4 chord") is a four-note chord consisting of the notes B♯, E♯, F, and A♯. The chord is formed by adding a minor seventh to a B-sharp suspended fourth chord.
B-sharp dominant seventh suspended fourth chord
B♯ E♯ F A♯
1 4 5 ♭7
Tetrad (four-note chord)