Boulez quickly became one of the philosophical leaders of the post-war movement in the arts towards greater abstraction and experimentation. Many composers of Boulez's generation taught at the Internationale Ferienkurse für Neue Musik in Darmstadt, Germany. The so-called Darmstadt School composers were instrumental in creating a style that, for a time, existed as an antidote to music of nationalist fervor; an international, even cosmopolitan style, a style that could not be 'co-opted' as propaganda in the way that the Nazis used, for example, the music of Ludwig van Beethoven. Boulez was in contact with many composers who would become influential, including John Cage and Karlheinz Stockhausen. Early in his career, he performed as a specialist on the ondes Martenot.
Today, Boulez continues to be one of the leaders of the post–World War II musical modernism. His compositions have enriched musical culture, and his advocacy of modern and postmodern music has been decisive for many. Boulez continues to conduct and compose. From 1976 to 1995, Boulez held the Chair in "Invention, technique et langage en musique" at the Collège de France. In 2002, he was awarded the Glenn Gould Prize for his contributions.more