Doesn’t he realize that no one could possibly play that passage? Even I know that.” The music of whimsical, young (35) Don Gillis was getting a hearing partly because of a whim of Toscanini’s.

“As I was walking around Lake Phalen one day, I was listening to public radio. They played a Humoresque. It brought back to mind some words that we used to sing to it, but that did not belong to ...

“I saw this auction that said ‘handwritten sheet music by Al Capone in Alcatraz,'” White told Jimmy Fallon. “I thought, ‘What could that possibly be?’ It said ‘Humoresque’ written ...