Since its premiere in Baden-Baden 50 years ago, 'Le Marteau sans maître' has been considered to be one of the outstanding works of musical serialism of the post-war avant-garde. The present fac-simile volume containing comprehensive manuscript material of the work in high-quality colour reproduction is published by the Paul Sacher Foundation to mark the 80th birthday of Pierre Boulez. Apart from the pencil draft and the first fair copy in ink, this edition contains selected sketches and drafts. Offering a fascinating look into the workshop of the then 30-year-old composer, these sources are explained in detail in the accompanying commentary. Clothbound in slipcase, 190 pages, 38x30cm with an introduction in French and English, numerous commented illustrations of sketches and documents, as well as music examples Instrumentation: Alto, Flute, Viola, Guitar Vibraphone, Xylophone and Percussion