Amazingly, after his sons introduced him to the music of Chick Corea and Herbie Hancock he decided to learn the piano! Probably in his '40s/'50s at the time. his intellect enabled him to grasp chord changes and patterns and now he's a highly regarded jazz composer and pianist. I'd gamble he's tops in the ear game too. The highest compliment in the jazz world is to say that he/she's got ears - Silverstein's got 'em!