2001: A Space Odyssey (soundtrack) Like North's score, Cordell's work was recorded at the now demolished Anvil, Denham studios. "2001" is particularly remembered for using pieces of Johann Strauss II's best-known waltz, "The Blue Danube", during the extended space-station docking and Lunar landing sequences. This is the result of the association that Kubrick made between the spinning motion of the satellites and the dancers of waltzes. It also makes use of the opening from the Richard Strauss tone poem "Also sprach Zarathustra" performed by the Vienna Philharmonic conducted by Herbert von Karajan. The use of Strauss's "Zarathustra" may be a reference to the theme of
2001: A Space Odyssey (score) music would have been an improvement on the background music that Kubrick finally chose for the film." Conversely, in his notes for the Jerry Goldsmith recording, Kevin Mulhall argued that "there is no doubt that "2001" would have been better if Kubrick had used North's music. Even if one likes some of the choices Kubrick made for certain individual scenes, the eclectic group of classical composers employed by the director... resulted in a disturbing melange of sounds and styles overall." Film critic Roger Ebert noted that North's rejected score contains emotional cues to the viewer while the final music selections