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