1. Overture: Atmospheres

2. Also Sprach Zarathustra

3. Requiem for Soprano, Mezzo Soprano, Two Mixed Choirs amp; Orchestra

4. Blue Danube [Excerpt]

5. Lux Aeterna

6. Gayane Ballet Suite

7. Jupiter and Beyond: Requiem for Soprano, Mezzo Soprano, Two Mixed Cho

8. Also Sprach Zarathustra

9. Blue Danube (Reprise)

10. Also Sprach Zarathustra

11. Lux Aeterna

12. Adventures [Unaltered]

13. Hal 9000 [Dialog Montage]

The most commendable use of sound in this film is "The Blue Danube" by Johann Strauss and "Also Sprach Zarathustra" by Richard Strauss (Johann Strauss "An der schoenen blauen Donau"; Richard Strauss "Also Spracht Zarathustra"). The former is soothing and beautiful, used to set off the tranquil atmosphere of the spaceship docking into the port (the scene where Kirk boarded the ship in the movie Star Trek (another movie) was also taken directly from here); the latter is passionate and magnificent, used to praise human evolution. Ecstasy (Strauss used this piece to express Nietzsche's argument about the superego).

Kubrick originally asked Alex North to compose the original soundtrack, but when editing the film, he temporarily used these two pieces of classical music. Unexpectedly, the effect was surprisingly good, so we have what we see now. Perfect match between sound and picture.

Another frequently used theme song is Gygory Ligeti’s Requiem Mass. They are respectively used for the opening sequence (3 minutes, the screen is completely black), the ape awakening, and the Jupiter mission.

In addition to classical music, Lao Ku also mixed in two works of the psychedelic sound "Pink Floyd". They are Echoes taken from the album "Meddle" and Atom Heart Mother Suite taken from the album "Atom Heart Mother". It's all used in the final scene, "Jupiter And Beyond The Infinite," and the seamlessness with which it fits into the frame (including the length) is truly amazing.