Notes: C, Db, Eb, F, G, and Bb - Key: C - Origin: Indian - Category: Heptatonic Scales
The C Raga Gandharavam 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 three black keys: Db, Eb, and Bb and three white keys: C, F, and G. This combination makes this scale - as well as the C Raga Abheri, C Raga Abhogi, and C Raga Adana - as great choices for composing or improvising Indian music.
If we take a look a the key signature of the C Raga Gandharavam 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, F, G, and Bb.