major scale in all keys: Cb C C# Db D Eb E F F# Gb G Ab A Bb B

C sharp major scale (C#)

Relative minor scale of C sharp major is A sharp minor scale

location on piano keyboard (one octave)
C sharp major scale - piano keys

C sharp scale (C#) - staffs and guitar tab

remark: notes of C sharp major scale are the same as notes of D flat major scale while notation and accidentals are different,

figures below the staff (sheet music) represent tablature for guitar players.