This is not only the greatest King Crimson record, but also may be one of the greatest records in modern music period, IMHO. It is a concept album and the music challenge the listners. My friend who is a classical music fan was blown away by listening experience of this album. If you are looking for top 40 hits, catchy hooks, or simple three chords ditty, this album or King Crimson may not be for you. But anyone who says "I love music," needs to listen to this album. It will be an experience.
Some listening advice; Do not play this album as a background music, or do not try to dace to it at parties. The best way to appreciate it is sit down in front of your CD player/speakers, make sure there is no distraction, and play the album. Actively listen, concentrate, study it, play the air drums (if you can keep up with the beasty Pat Mastelotto that is!), and do not stop or leave in the middle of the music or CD but listen to the entire album, from start to finish. After that go to your computer and check the website discipline global mobile(record label of King Crimson and other cool artists established by Robert Fripp, [...] ) and learn more.