Notes: C, Db, Eb, E, F, G, Ab, A, and B - Key: C - Origin: Russian - Category: Decatonic Scales
The C Tcherepnin Nine-Note Mode I 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: Db, Eb, and Ab and six white keys: C, E, F, G, A, and B. This combination makes this scale - as well as the C Petrushka chord, C Shostakovich, and C Tcherepnin Major Pentatonic Mode I - as great choices for composing or improvising Russian music.
If we take a look a the key signature of the C Tcherepnin Nine-Note Mode I 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, Db, Eb, E, F, G, Ab, A, and B.