An impressive deep dive into the legacy of the Greek-French composer Iannis Xenakis' innovations in music notation for contemporary composers. Trained in mechanical engineering, Xenakis transformed mathematical models into architectonic musical entities and in the late 1970s developed a digital apparatus that rendered waveforms drawn on a tablet as musical compositions. The device was called UPIC, or Unité Polyagogique Informatique du CEMAMu, named for the French contemporary music research institute that Xenakis had helped found a decade earlier. The device proved to be an essential tool for the development of contemporary music - a version of the software is still used by composers today. Featuring archival materials, the book examines the origins of Xenakis’ UPIC and also serves as a compositional tool: embedded QR codes allow readers to create their own sound-images from UPIC compositions. Item #1238.