About the blues scale
The blues scale adds the flattened 5th, the “blue note”, to the minor pentatonic. Used as a passing tone, it gives blues, rock and jazz lines their typical bite.
Use the Scale & Chord Finder to look up any other root or mode.
Scale
C♯ blues scale
The C♯ blues scale has 6 notes: C♯, E, F♯, G, G♯, B. Its enharmonic twin is D♭ blues. Hear it, see it on the keyboard and find the chords that belong to it.
C♯1
E♭3
F♯4
G♭5
G♯5
B♭7
Steps: 1½ W H H 1½ W