Iannis Xenakis (1922–2001), composer. As an illegal immigrant in Paris, Xenakis began working as a draftsman in 1947, and soon after as an architect in the office of Le Corbusier, while simultaneously composing. In the course of his work he developed ideas for a reciprocal transferability of architectural and musical forms, which he expanded into a mathematically based concept of structural equivalence. In 1977 he developed UPIC (Unité Polyagogique Informatique CEMAMu), a computer for sound synthesis with a graphical interface, which allowed the mechanical translation of drawings into sound. Xenakis is among the most important composers of the second half of the 20^th century with instrumental as well as electroacoustic compositions. Xenakis: Musique formelle (1963); English: Formalized Music (1971, 1992).

http://www.iannis-xenakis.org/