French-American jazz pianist Dan Tepfer: Capturing the sound of planets

French-American jazz pianist and composer Dan Tepfer has shared the stage with some of the leading lights in jazz - from Lee Konitz to Pharoah Sanders. His acclaimed album Goldberg Variations / Variations saw the prize-winning performer take a classic to new places. A freewheeling creative with a talent for improvisation and astrophysics, Tepfer's curiosity has now gravitated toward capturing the song of planets. He joins us on "Encore".