Many years ago I was having dinner with a group of colleagues when the name of a viola player we all knew came up. When I mentioned that this violist had just had his third heart attack, the instantaneous response from an old-timer across the table was, “Really? I didn’t know he had a heart.” As it happens, the heartless violist in question was not a terribly good player, to put it mildly. But we musicians have all known people we’ve found to be thoroughly unpleasant, even cruel, or thoroughly