György Ligeti
György Sándor Ligeti (28 May 1923 – 12 June 2006) was a composer from Hungary. He was an important composer of avant-garde music. His music influenced many other composers. Some of his most famous works are an opera called Le Grand Macabre, a piece for orchestra called Atmosphères, a piece for choirs called Lux Aeterna, and a Requiem. Stanley Kubrick used parts of  Atmosphères, Lux Aeterna, and the Requiem for the soundtrack of his movie 2001: A Space Odyssey. Many other movies use pieces of Ligeti's music on their soundtracks.