Iannis Xenakis was a pioneering figure in the world of avant-garde and experimental music, renowned for his innovative approach to composition that blended architecture, mathematics, and engineering. Born in Romania to a family of Greek ancestry, Xenakis' journey was marked by resilience and creativity. After studying civil engineering in Athens and surviving the horrors of World War II, he fled to Paris in 1947, where he collaborated with the legendary architect Le Corbusier. Xenakis' compositions, such as "Metastaseis," "Pithoprakta," and "O-mega," are celebrated for their systematic, mathematical organization, redefining traditional musical structures. His work, which includes both instrumental and electroacoustic pieces, continues to inspire and influence musicians and composers worldwide. Xenakis' legacy is not just in his music but also in his interdisciplinary approach, making him one of the most original and important composers of the post-World War II era.