One of the most influential composers alive today, Stockhausen has dominated new music for over thirty-five years, pioneering advances in electronic music, multi-orchestra music, musical meditation, and music composers. This work, now in its second edition, remains the only overview of Stockhausen's music. Newly enlarged and revised, it now covers his compositions since 1976, including such major landmarks as Sirius and Licht. Depicting the development of his musical thought with clarity and insight, this survey will interest anyone involved with twentieth-century music.