The Austrian composer Anton Webern (1883-1945) is one of the major figures of musical modernism. His mature works comprise two styles: the so-called free atonal music composed between 1907 and 1924, and the twelve-tone serial music that began in 1924 and extended through the remainder of his creative life. In this book an eminent music theorist presents the first systematic and in-depth study of the early atonal works, from the George Lieder, opus 3, through the Latin Canons, opus 16.