2001: A Space Odyssey (soundtrack) used is Ligeti's "Lux Aeterna" and an electronically altered form of his "Aventures", the last of which was so used without Ligeti's permission and is not listed in the film's credits. Since the film, "Also sprach Zarathustra" has been used in many other contexts. It was used by the BBC and by CTV in Canada as the introductory theme music for their television coverage of the Apollo space missions, as well as stage entrance music for multiple acts including Elvis Presley late in his career. Jazz and rock variants of the theme have also been composed, the most well known
The Killing Fields (soundtrack) films before (see "The Exorcist" and "The Space Movie"), this was the first time he had written specifically for film, and so far the only time. Oldfield composed the album on a Fairlight CMI. Like many movies, the album is not a comprehensive record of all the Oldfield soundtrack music used in the film. Most notably, the music accompanying the darkroom sequence does not feature on the album. The single from the album, "Étude", is taken from the Francisco Tarrega piece "Recuerdos de la Alhambra". Oldfield's work on the score was partially instigated by Virgin boss Richard Branson when he