2001: A Space Odyssey (soundtrack) being the 1972 arrangement by Eumir Deodato (itself used in the 1979 film "Being There"). Both "Zarathustra" and "The Blue Danube" have been used in numerous parodies of both the film itself and science fiction/space travel stories in general. HAL's "Daisy Bell" also has been frequently used in the comedy industry to denote both humans and machines in an advanced stage of madness. The initial MGM soundtrack album release contained none of the material from the altered and uncredited rendition of "Aventures", used a different recording of "Also Sprach Zarathustra" than that heard in the film, and a longer excerpt
2001: A Space Odyssey (soundtrack) It is subsequently heard when an ape first learns to use a tool, and when Bowman is transformed into the Star-Child at the end of the film. "Zarathustra" thus acts as a bookend for the beginning and end of the film, and as a motif signifying evolutionary transformations, first from ape to man, then from man to Star-Child. This piece was originally inspired by the philosopher Nietzsche's book of the same name which alludes briefly to the relationship of ape to man and man to Superman. "The Blue Danube" appears in two intricate and extended space travel sequences as well