Born Greek in Rumania, Xenakis was trained in architecture in Athens; between 1947 and 1959, he worked with Le Corbusier , reportedly contributing to the spatial installation of Edgard Varèse ‘s Poème électronique at the 1958 Brussels World’s Fair. While working in architecture, he studied music with Olivier Messiaen (1908–92) and Darius Milhaud (1892–1974). Using various kinds of mathematics, Xenakis has advocated what Nicolas Slonimsky calls...