The fifth edition of Materials and Techniques of Post-Tonal Music is an excellent resource for students looking to understand the innovative compositional strategies that emerged from the post-tonal era. This updated edition includes new examples from recent music, new topics such as parsimonious voice-leading, scalar transformations, the New Complexity, and set theory, and expanded discussions of spectralism and electronic music. Each chapter contains a timeline to provide context, as well as a companion website with recordings of musical examples and instructor resources. This text provides accessible explanations of complex concepts and is an essential guide for any student of post-tonal music theory.