Giannis Klearchou Xenakis was a Romanian-born Greek-French avant-garde composer, music theorist, architect, performance director and engineer.
Xenakis in his Paris studio, c. 1970
The Philips Pavilion, designed by Xenakis, during the 1958 Brussels World's Fair (Expo 58)
Olivier Eugène Prosper Charles Messiaen was a French composer, organist, and ornithologist. One of the major composers of the 20th century, he was also an outstanding teacher of composition and musica
Iannis Xenakis
…Milhaud, but these lessons also proved fruitless. Annette Dieudonné, a close friend of Boulanger's, then recommended that Xenakis try studying with Olivier Messiaen. Xenakis approached Messiaen for advice on whether he should once again start studying harmony and counterpoint. Messiaen later recalled: I understood…
Messiaen with his mother and father in 1910
Paul Dukas's composition class at the Paris Conservatoire, 1929. Messiaen sits at the far right; Dukas stands at the centre.
Église de la Sainte-Trinité, Paris, where Messiaen was titular organist for 61 years