This text provides the most comprehensive analytical approach to post-tonal music available, from Impressionism to recent trends. It covers music from the early 1900s through the present day, with discussion of such movements as Minimalism and the Neoromanticism, and includes chapters on rhythm, form, electronic and computer music, and the roles of chance and choice in post-tonal music. Chapter-end exercises involve drills, analysis, composition, as well as several listening assignments.