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polytonality

[pol-ee-toh-nal-i-tee] /ˌpɒl i toʊˈnæl ɪ ti/
noun, Music.
1.
the use of more than one key at the same time.
Also, polytonalism
[pol-ee-tohn-l-iz-uh m] /ˌpɒl iˈtoʊn lˌɪz əm/ (Show IPA)
.
Origin
1920-1925
1920-25; poly- + tonality
Related forms
polytonalist
[pol-ee-tohn-l-ist] /ˌpɒl iˈtoʊn l ɪst/ (Show IPA),
noun
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for polytonalism

polytonality

/ˌpɒlɪtəʊˈnælɪtɪ/
noun
1.
(music) the simultaneous use of more than two different keys or tonalities
Derived Forms
polytonal, adjective
polytonally, adverb
polytonalist, noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Encyclopedia Article for polytonalism

polytonality

in music, the simultaneous occurrence of two or more different tonalities or keys (the interrelated sets of notes and chords used in a composition). If only two keys are employed, the term bitonality is sometimes used.

Learn more about polytonality with a free trial on Britannica.com
Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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