U.K.
Eddie Jobson (keys / violinist > Roxy Music)
John Wetton (bass / vocals > King Crimson)
Allan Holdsworth (guitarist > Zappa, Soft Machine)
Bill Bruford (drums > Yes, King Crimson)
For me, a guilty pleasure. One of the finest progressive rock albums of all time.
Wore out a couple of these on vinyl back in the day. Working on wearing out my second copy of the CD
Anytime I listen to Bill Bruford, I think of a quote I once heard in admiration of Fred Astaire by someone witnessing him perform the "Dancing on the Ceiling" bit from Royal Wedding. "Ann Miller was a great dancer. Martha Graham was a great dancer. Gene Kelly was a great dancer. Fred Astaire came from another planet."
Bruford is (IMHO) the undisputed master of odd time signatures.
I'd likely pay $50 for a concert ticket to hear him drum his fingers on a tabletop.