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More precisely, the complexe sonore is Igor Stravinsky's use of diatonic and whole tonemotifs, and scales, against an octatonic background, rotated by minor thirds. Stravinsky "considered them to be in a perpetual state of potential symmetrical rotation by minor thirds under which the octatonic background scale is invariant." Dmitri Tymoczko argues that Stravinsky's octatonicism results "from two other compositional techniques: modal use of non-diatonic minor scales, and superimposition of elements belonging to different scales."