piano scale
C major blues
C1D2E♭♭3E3G5A6
Major pentatonic with a flattened third added next to the third — the two live side by side rather than replacing each other.
Written out
Every accidental is written in, rather than left to a key signature, so the letters can be read one at a time.
The step pattern
CWDHE♭HEW+HGWAW+HC
What is true of it
C major blues is C, D, E♭, E, G and A, and back to C.
Its steps are W – H – H – W+H – W – W+H, where W is a whole step and H a half.
Chords made only of these notes
Found by testing every chord in the catalogue against these 6 sounds, not chosen.
Other scales on C
C major pentatonicpentatonicC minor pentatonicpentatonicC bluespentatonicC majormajorC natural minorminorC harmonic minorminor
C♯ maj bluesD♭ maj bluesD maj bluesD♯ maj bluesE♭ maj bluesE maj bluesF maj bluesF♯ maj bluesall 374