2001: A Space Odyssey United States Library of Congress and selected for preservation in the National Film Registry. A musical score was commissioned for the film and composed by Alex North, but Kubrick ultimately decided not to use it, in favour of the classical pieces he used as guides during shooting. These included Richard Strauss's "Also Sprach Zarathustra", Johann Strauss' "Blue Danube Waltz", and music by twentieth-century composers Aram Khachaturian and Gyorgy Ligeti. Toward the end of the sequence where the HAL 9000 computer is lobotomized, it begins to play the 1892 song "Daisy Bell (Bicycle Built for Two)" by Harry Dacre, which Clarke
2001: A Space Odyssey (film) as a pessimistic account of human nature and humanity's future. The most extreme of these interpretations state that the fetus floating above the Earth will destroy it." Many of the cataclysmic interpretations of the film appeared inspired by Kubrick's direction of the Cold War film "Dr. Strangelove" just before "2001", which resulted in dark speculation about the use of nuclear weapons orbiting the Earth in "2001". These interpretations were challenged by Clarke, who said: "Many readers have interpreted the last paragraph of the book to mean that he (the fetus) destroyed Earth, perhaps for the purpose of creating a new