Diatonic

Di`a`ton´ic Pronunciation: dī`å`tǒn´ĭk

Diatonic scale
(Mus.) 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.

Adj.	1.	diatonic - based on the standard major or minor scales consisting of 5 tones and 2 semitones without modulation by accidentals Antonyms: 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