http://www.bbc.co.uk/iplayer/episode/b03pdh5l/Radio_3_Live_in_Concert_BBC_Symphony_Orchestra_Shostakovich_Martinu/ Semyon Bychkov conducts the BBC Symphony Orchestra in performances of Shostakovich’s Leningrad Symphony and Martinu’s Concerto for Two Pianos & Orchestra with Katia & Marielle Labèque from London’s Barbican Centre: The performance is available to hear on BBC Radio 3 until 23 January.