I've had Aphex Twin's double album Selected Ambient Works volume 2 for years, and I've probably listened to it, and the second disc's first track more than I can possibly recall. As you can see, the album has a mythology all its own due to its unique packaging and lack thereof any song titles. I find all of that interesting, but it's not the reason why I like the album so much.

For lack of a better analogy on how to describe the sound of the work, let me say that Richard D. James (aka Aphex Twin) has been said to have composed it after a series of lucid dreams in which he heard the music, which he tried to compose upon reawakening . Listening to the work, you can tell that it just might have been like that. The music, ambient in nature without any real percussion, sounds as if it's from another dimension. In fact, the sticker on the outside of the package quotes a reviewer who states that it sounds like the kind of music the obelisk in 2001: A Space Odyssey would make if it made sound. To me, that's one of the greatest analogies out there.