The following is taken from the liner notes of the LP, 'The Two Piano's of Leonard Pennario'.

One evening, in his teens, he was visiting friends who owned an atrocious piano, which was in addition, badly out of tune. They nevertheless insisted that he play for them. Feeling prankish, he went to the piano and improvised in march rhythm on the first tune that came into his head. His hostess remarked, "Only lunatics could march to that." Later that night, after he had returned to his home, Pennario wrote down his improvisation -- only to discover that each hand was in a different key, adding to the confusion!.