Notes: C, D, F, and G - Key: C - Origin: Latin - Category: Pentatonic Scales
The C Genus primum uses five notes per octave. Because of this same reason it is a member of the so called Pentatonic -scales that have Five-note (or Five-tone). On the piano keyboard, it is made up of no black keys: no and four white keys: C, D, F, and G. This combination makes this scale - as well as the C Genus diatonicum, C Genus diatonicum veterum correctum, and C Genus secundum - as great choices for composing or improvising Latin music.
If we take a look a the key signature of the C Genus primum Scale we can find it has no flats and no sharps. Therefore, on sheet music you will find no accidentals on the score. The notes of this scale are: C, D, F, and G.