01 a. Pertaining to the scale of eight tones, the eighth of which is the octave of the first.
-
1.
Pertaining to the scale of eight tones, the eighth of which is the octave of the first.(Mus.)
Phrases & compounds
Diatonic scale —
a scale consisting of eight sounds with seven intervals, of which two are semitones and five are whole tones; a modern major or minor scale, as distinguished from the chromatic scale.