Notes: C, D, Eb, F, F#, G, Ab, and B - Key: C - Origin: Arabian - Category: Nonatonic or Ennatonic Scales
The C Algerian uses nine notes per octave. Because of this same reason it is a member of the so called Nonatonic or Ennatonic -scales that have Nine-note (or Nine-tone). On the piano keyboard, it is made up of three black keys: Eb, F#, and Ab and five white keys: C, D, F, G, and B. This combination makes this scale - as well as the C Arabic, C Zirafkend : Arabic, - as great choices for composing or improvising Arabian music.
If we take a look a the key signature of the C Algerian Scale we can find it has two flats and one sharps. Therefore, on sheet music you will find three accidentals on the score. The notes of this scale are: C, D, Eb, F, F#, G, Ab, and B.