B-sharp Locrian scale
The B-sharp Locrian scale is a seven-note scale consisting of the notes B♯, C♯, D♯, E♯, F♯, G♯, and A♯. The scale corresponds to a B-sharp natural minor scale with the second and fifth degree lowered a half step.
The B-sharp Locrian scale is a mode of the C-sharp major scale. It contains the same notes but starts on the seventh degree of the major scale.