If you're a music lover, don't miss this episode of The Backpack show! Come and meet Cellista, an American cellist, performance artist, and composer. We'll talk about her music career, as well as the live performances she stages in unconventional spaces. Also joining us is blues, jazz, and boogie-woogie pianist Mark Braun. Mark founded the nonprofit "Mr. B's Joybox Express" to raise funds for children's arts and athletic programs through musical events. He’d take his music on the road by way of a custom-built bicycle strong enough to haul his 352-pound piano.