Iannis Xenakis was a composer, music theorist and architect-engineer. He fled Greece in 1947 and became a citizen of France. Along with Stockhausen, he is regarded as one of the most important post-war avant-garde composers. He integrated music with architecture and designed spaces to be integrated with his compositions and performances.
Faced with the drastic urban and architectural situation of today, we are obliged to lay down axiomatic foundations and to attempt a formalization of the two sciences. This is why the first question is that of urban decentralization.