As far as I’m aware, the out of print LP from the '80s not only did not feature all cues used in the film, but also included the incorrect performances for some of them. In 2005, Wendy Carlos releases a compilation of her unused music for the film, and while such material makes for an interesting listening experience on its own, I feel a release with the music as heard in the film is just a necessary.

Most of the cues can be found in various LP and CD releases from around the world, except for Penderecki’s “Kanon” (from Utrenja). The recording used in the film (by The National Warsaw Philharmonic Orchestra) was available in the old LP it seems, but sadly in abridged form. Anyone knows where such performance can be found in full?