Notes: C, D, Eb, E, F, Gb, G, A, and Bb - Key: C - Origin: African - Category: Decatonic Scales
The C Blues Nonatonic uses ten notes per octave. Because of this same reason it is a member of the so called Decatonic -scales that have Ten-note (or Ten-tone). On the piano keyboard, it is made up of three black keys: Eb, Gb, and Bb and six white keys: C, D, E, F, G, and A. This combination makes this scale - as well as the C Blues Nine-Note, C Blues Enneatonic, and C Blues Heptatonic - as great choices for composing or improvising African music.
If we take a look a the key signature of the C Blues Nonatonic Scale we can find it has three flats and no sharps. Therefore, on sheet music you will find three accidentals on the score. The notes of this scale are: C, D, Eb, E, F, Gb, G, A, and Bb.