New edition of a text examining 20th-century musical ideas and expression. Updated information includes a section on post-modernism, and an increased emphasis on social and technological change as a background for understanding artistic events. The 21 chapters establish a conceptual framework for the post-war period and discuss the relationship between this music and the past, the breakdown of traditional tonality, the new tonalities, atonality and 12-tone music, the avant-garde, and post-modernism. Contains a few b&w illustrations.
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