Interesting thread. I don't know much about Beethoven (and forgive me for going off topic a little bit), but when I saw you say, Carol, that he was clearly insane when he wrote that work, the first thing that popped into my mind was Samuel Barber, an American composer. Actually, I don't think he ever was so far as I know, but his Piano Concerto is such intense, insane, dramatic, unbelievable music! I always think of insanity when I hear it. And I do love it so much. It's absolutely fantastic. But very weird!