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Jean Toussaint on X: "This is known as a quarter tone piano it has three keyboards one on top of the other and sounds incredible out of tune. @Jasrebello @McCormackMusic. https://t.co/vLysXCZhiT" /
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The Arditti Quartet Champions the Maximalist Microtonality of Ivan Wyschnegradsky | San Francisco Classical Voice
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Microtonal piano sounds: a 1930s audio recording and a unique score of Ivan Wyschnegradsky's Ainsi parlait Zarathoustra in Rare Music – Archives and Special Collections
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