King Crimson - In the Court of the Crimson King (album ...
Considered to be the marker of the big breakthrough of progressive rock, the album's opening track starts off with an eerie, creeping atmosphere that expires just before the 30-second-mark, at which point, the band explode into a lengthy and grand riff which is revisited here and there throughout "21st Century Schizoid Man" (TRACK 1/1A, 3.25/5), a seven-and-a-half-minute-long vehicle for avant-garde fusion .