diatonic

di·a·ton·ic  (d-tnk)

adj. Music

Of or using only the seven tones of a standard scale without chromatic alterations.

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[Late Latin diatonicus, from Greek diatonikos : dia-, dia- + tonos, tone; see tone.]

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dia·toni·cal·ly adv.

dia·toni·cism (--szm) n.

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diatonic

Adjective

of or relating to any scale of five tones and two semitones produced by playing the white keys of a keyboard instrument [Greek diatonos extending]

Thesaurus

Adj.	1.	diatonic - based on the standard major or minor scales consisting of 5 tones and 2 semitones without modulation by accidentals music - an artistic form of auditory communication incorporating instrumental or vocal tones in a structured and continuous manner chromatic - based on a scale consisting of 12 semitones; "a chromatic scale"
	2.	diatonic - based on or using the five tones and two semitones of the major or minor scales of western music tonal - having tonality; i.e. tones and chords organized in relation to one tone such as a keynote or tonic