Yes, "mock rock." Every little runny-nosed, diapered twat that was involved in the British version of "punk rock" three or four years later saw that, and despite the revisionist history of some of them, they all though it was the greatest thing they'd ever seen. Which, at the time, it probably was. What with Mr. Mockrock and his rabbit teeth proclaiming the greatness of ELP and other exciting non-mock rock. His labeling of it as "mock rock" is probably what made it great for a lot of those kids. "If that crabby old beard hates it, it must be good."