This is just a snippet from the middle of this epic song. YES -- you either love them or hate them. There is no middle. YES was one of the founders of progressive rock and certainly are the longest lived of the genre (along with Rush, who came along later). Too bad the Rock and Roll Hall of Fame sees rap and punk bands (and ABBA) more worthy and influential to the world of Rock.
Here is a bonus cut. Some of you will remember this one: