In this episode of Between the Lines, Rob Kapilow discusses his What Makes It Great series, in which he takes listeners inside the music to experience classical masterpieces like never before through musical examples, engaging commentaries, and live performances. In his next What Makes It Great program on November 10 at 7pm in Baird Auditorium at the Smithsonian's Museum of Natural Histroy, Kapilow is joined by The Peabody Chamber Players to explore Bach's Double Violin Concerto. Tickets at 202-785-WPAS or WPAS.org.