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Meaning of whole-tone scale

whole'-tone scale'

Pronunciation: (hōl'tōn"), [key]
— Music. Music.
  1. a scale progressing entirely by whole tones, as C, D, E, F♯, G♯, A♯, C.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.