Iannis Xenakis

Iannis Xenakis was a man of many different talents.

He was a composer who wrote music. He was also an architect who designed buildings. He was even an engineer who understood how things work. Xenakis did not want to make music like the composers from the past. He did not want to follow old rules. Instead, he looked to the sounds of the real world. His music can sound like the pitter-patter of rain. It can sound like the loud noise of a factory. It can even sound like a crowd of people chanting together.

To make these sounds, Xenakis used math in a very special way. He used things like set theory and stochastic processes. These are math rules that help him organize sounds. He also used game theory to help him compose. This helped him create a "sound mass" that feels like it comes from outside. He used math to turn formulas into exciting music. He even used a system called UPIC to make electronic music. This allowed him to use computers to help him create new sounds.

His life began in Brăila, Romania, in 1922. His parents were Greek, and his mother was a talented pianist. She gave him a flute when he was young. He studied at a boarding school on the island of Spetses. There, he learned about music and the writer Homer. He also studied physics and math at a university in Athens. In 1940, a war began in Greece. During this time, Xenakis was part of an armed resistance. He was hurt in a fight and lost sight in one eye.

Because of the war and fighting, Xenakis had to leave Greece. He moved to Paris in 1947 using a fake passport. He later became a French citizen in 1965. In Paris, he worked for the famous architect Le Corbusier. Xenakis helped design the priory of Sainte-Marie de La Tourette. He also designed the Philips Pavilion for the 1958 Brussels World's Fair.

This pavilion was a very important project that he designed by himself. He also wrote an important book called Formalized Music in 1963.

Xenakis liked to mix his different skills together. He would design music specifically for certain buildings. He also designed buildings to work with specific music. Some of his music, like Metastaseis from 1953, used new ideas for orchestras. He also wrote music for percussion instruments, like Psappha. Some of his shows even put musicians among the audience. This is called spatialization, which means spreading sound through a space. He loved to create large performances called polytopes that used all his skills at once.