F-sharp Lydian scale
The F-sharp Lydian scale is a seven-note scale consisting of the notes F♯, G♯, A♯, B♯, C♯, D♯, and E♯. The scale corresponds to a F-sharp major scale with the fourth degree raised a half step.
The F-sharp Lydian scale is a mode of the C-sharp major scale. It contains the same notes but starts on the fourth degree of the major scale.