IANNIS XENAKIS - Hibiki Hana-Ma / Mycenae Alpha / Polytope de Cluny LPIannis Xenakis (1922 2001) is one of the most important composers of the 20th century avantgarde whose influence on music can be traced to the present day not only in the world of conservatory trained composers but also in various streams of current non academic underground aesthetics such as experimental electronic music, noise and industrial. After he arrived in Paris in 1947, Xenakis not only studied composition with Messian and later became a