D defs.my
Entry 1 sense Webster, 1913

major diatonic scale

· IPA
01 n. The natural diatonic scale, which has semitones between the third and fourth, and seventh and eighth notes, and whole tones between the oth…
  1. 1.
    The natural diatonic scale, which has semitones between the third and fourth, and seventh and eighth notes, and whole tones between the other notes; the scale of the major mode, of which the third is major; also called major scale. See Scale, and Diatonic.(Mus.) Also: major scale See: Scale, Diatonic