He has lived in Paris since 1948. Xenakis studied composition at the Paris Conservatory under Honegger, Milhandand Messiaen. He has also taken an active part in the field of architecture as an avantgarde associate of Le Corbusier. His Philips Pavilion, designed for the Brussels World's Fair, 1958. and other designs following his original concept of space have attracted world-wide attention. —Based upon notes by Kuniharu Akiyama