This week’s theme: The Gershwin Songbook, as played by jazz pianists and their groups. Featured artists include: Oscar Peterson, Art Tatum, Bill Evans, Herbie Hancock, Red Garland, Billy Taylor, Bud Powell, Oscar Pettiford, Art Blakey, Paul Motian, Scott LaFaro, Hampton Hawes, Red Mitchell, Chuck Thompson, John Lewis, Percy Heath, Connie Kay, Ray Brown, Ed Thigpen, John Ore, J.C. Moses, Ray Barreto, Arthur Taylor, Paul Chambers, Randy Weston