It is so hard to believe that "Also Sprach Zarathustra" was not written for the 2001 as never was a piece of music so apt. The strange and alien Ligeti tracks are well chosen and Strauss's "Blue Danube", already imortal, is forever waltzing through infinite space. (It would have been better, I think, if the Blue Danube Waltz had been included in its entirety, from begining to end, as one piece, instead of in two halves.)
The inclusion of the original Gyorgy Ligeti "Adventures" adds an interesting touch and shows just how right Kubrick was to have the "altered" version used in the film.
To any fan of the film listening to Hal is always a pleasure so the nine and a half minutes of dialogue included on the CD is an exceptional bonus.
If you saw 2001 in '68 - your life was probably changed forever! This CD is for you.