Radio 3 Requests - Durufle, Respighi, David Oistrakh

Fiona Talkington delves into this week's selection of listeners' requests. Today's line-up includes a piano concerto by one third of Emerson, Lake and Palmer, Gregorian moods by Durufle and Respighi, and classic archive performances by David Oistrakh and Francoise Pollet.