Scales › C♯ blues
Notes: C♯ – E – F♯ – G – G♯ – B
The minor pentatonic plus one note, the “blue note” (the flat fifth): six notes, enough to improvise over a blues.
Steps between the notes (W = whole step, H = half step): W+H – W – H – H – W+H – W.
D♭ major · C♯ minor · C♯ harmonic minor · D♭ major pentatonic · C♯ minor pentatonic