Iannis Xenakis was a Greek composer known for his pioneering work in musical stochastic processes and for incorporating mathematics into music composition. He showed an early aptitude for music, memorizing Mozart's Requiem at age 10. During WWII he studied architecture with Le Corbusier and music with Olivier Messiaen in Paris. One of his most famous works is the avant-garde composition Metastasis from 1953-1954, consisting of three continuous movements featuring unusual sounds and textures created through stochastic mathematical processes.