B#dim7 chord
The B-sharp diminished seventh chord (abbreviated "B#dim7 chord") is a four-note chord consisting of the notes B♯, D♯, F♯, and A. The chord is formed by adding a diminished seventh to a B-sharp diminished chord.
Name
B-sharp diminished seventh chord
Synonym
B-sharp fully diminished chord
Notes
B♯ D♯ F♯ A
Intervals
1 ♭3 ♭5 ♭♭7
Chord symbol
B♯o7
Alternative symbols
B♯dim7 B♯dim B♯o
Type
Tetrad (four-note chord)