David Kopp, Chromatic Transformations in Nineteenth-Century Music (Cambridge Studies in Music Theory and Analysis)https://rapidgator.net/file/c8b4bb5356eee55db2ba56a0ed1be5f4/David_Kopp,_Chromatic_Transformations_in_Nineteenth-Century_Music_(Cambridge_Studies_in_Music_Theory_and_Analysis).zip.html
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