Notes: C, D, Eb, G, and Ab - Key: C - Origin: Japanese - Category: Hexatonic Scales
The C Kata-kumoi uses six notes per octave. Because of this same reason it is a member of the so called Hexatonic -scales that have Six-note (or Six-tone). On the piano keyboard, it is made up of two black keys: Eb, and Ab and three white keys: C, D, and G. This combination makes this scale - as well as the C Akebono I, C Akebono II, and C Banshikicho - as great choices for composing or improvising Japanese music.
If we take a look a the key signature of the C Kata-kumoi Scale we can find it has two flats and no sharps. Therefore, on sheet music you will find two accidentals on the score. The notes of this scale are: C, D, Eb, G, and Ab.