Notes: C, Db, Eb, F, Gb, and Bb - Key: C - Origin: Japanese - Category: Heptatonic Scales
The C Honchoshi plagal form uses seven notes per octave. Because of this same reason it is a member of the so called Heptatonic -scales that have Seven-note (or Seven-tone). On the piano keyboard, it is made up of four black keys: Db, Eb, Gb, and Bb and two white keys: C, and F. 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 Honchoshi plagal form Scale we can find it has four flats and no sharps. Therefore, on sheet music you will find four accidentals on the score. The notes of this scale are: C, Db, Eb, F, Gb, and Bb.