A change of seasons
The second album (as I said before, in chronological order) in my list of greatest albums is Dream Theater's 1995 EP 'A Change of Seasons'. Unfortunately, I could only locate a four-part video with the full 23 minutes of the title track on youtube, so here is the first six minutes followed by links to the rest:
And part 2, part 3 and part 4.
In this economist's humble opinion, Dream Theater is the most super of super-groups in the history of rock, and arguably the best band ever to walk the planet. Here's the official website, and what Wikipedia has to say about them.
And check this guy out - simply excellent, never seen anyone more deserving of a real drumkit.