International audienceXenakis’ electroacoustic works are relatively few in his whole production, but they are very important. Indeed, most of them punctuate the history of electroacoustic music as masterpieces full of originality and innovation. As they are composed at important moments of Xenakis’ evolution, these works can also be analyzed to understand the various aspects of his musical, theoretical, aesthetic and interdisciplinary thought: research on noise, granular theory, experimentations on spatialization, inter-artistic realizations… This book stems from an international symposium organized in May 2012 by Musidanse (University Paris 8), which hosted forty researchers (musicologists, composers ...) —among them many internationally r...