diatonicism


di·a·ton·ic

D0201600 (dī′ə-tŏn′ĭk)adj. Music Of or using only the seven tones of a standard scale without chromatic alterations.
[Late Latin diatonicus, from Greek diatonikos : dia-, dia- + tonos, tone; see tone.]
di′a·ton′i·cal·ly adv.di′a·ton′i·cism (-ĭ-sĭz′əm) n.

diatonicism

the use of the diatonic scale of five whole tones and two halftones in the composition of music. Also diatonism. Cf. chromaticism.See also: Music