I saw that tour in Chicago.
Saw them in Toledo at the Masonic Hall. My favorite was their very own Pirates. Great instrumentals and I always loved the swash buckling theme.
Same here. Got turned on to them by my college roommate who was nationally rated as a classical organist. He had access to the campus pipe organ 24/7, a monster with almost 6000 pipes. Several evenings I got a private recital of ELP while kicked back with a six pack and a smoke.