polytonalism

noun

music that uses two or more different keys at the same time

• Syn: ↑polytonality

• Derivationally related forms: ↑polytonal (for: ↑polytonality)

• Hypernyms: ↑music

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\\| ̷ ̷ ̷ ̷|tōn^əlˌizəm\ noun (-s)

Etymology: polytonal + -ism

: the practice or theory of using polytonal combinations in musical composition