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Related to whole-tone scale: octatonic scale
(Music, other) either of two scales produced by commencing on one of any two notes a chromatic semitone apart and proceeding upwards or downwards in whole tones for an octave. Such a scale, consisting of six degrees to the octave, is used by Debussy and subsequent composers
a musical scale progressing entirely by whole tones, as C, D, E, F♯, G♯, A♯, C.