A worshipful site created by Guido Deiro's son, Count Guido Roberto Deiro. The Count clears up the controversy over who was the first famous piano accordionist, Guido or his brother, Pietro. It was Guido, of course! In fact, on this website, there are so many firsts attributed to this celebrated accordionist, you'll be convinced that he discovered penicillin and split the atom (using his piano accordion, which he was the first to master). There's an interesting section about his marriage to Mae West, with whom he spent many an evening perfecting his bellows shake.