2001: A Space Odyssey (soundtrack) mankind's eventual replacement by overmen ("Übermensch") in Nietzsche's work "Thus Spoke Zarathustra". "Gayane's Adagio" from Aram Khachaturian's "Gayane" ballet suite is heard during the sections that introduce Bowman and Poole aboard the "Discovery", conveying a somewhat lonely and mournful quality. In addition to the majestic yet fairly traditional compositions by the two Strausses and Khachaturian, Kubrick used four highly modernistic compositions by György Ligeti that employ micropolyphony, the use of sustained dissonant chords that shift slowly. This technique was pioneered in "Atmosphères", the only Ligeti piece heard in its entirety in the film. Ligeti admired Kubrick's film but, in addition
2001: A Space Odyssey (film) version of "Zarathustra" used in the film, and used the shorter version of "Lux aeterna" from the film. As additional "bonus tracks" at the end, the CD includes the versions of "Zarathustra" and "Lux aeterna" on the old MGM soundtrack, an "unaltered" performance of "Aventures", and a nine-minute compilation of all of Hal's dialogue. North's unused music was first released in Telarc's issue of the main theme on "Hollywood's Greatest Hits, Vol. 2", a compilation album by Erich Kunzel and the Cincinnati Pops Orchestra. All the music North originally wrote was recorded commercially by his friend and colleague Jerry Goldsmith