64x1 - BBC Proms

Katie Derham introduces a Prom concert from the Royal Albert Hall in London, featuring Mahler's Symphony No 8 - Symphony of a Thousand. The choral symphony for orchestra, massed choirs and eight soloists, launches the 150th-anniversary celebrations of Mahler's birth. Jiri Belohlavek, chief conductor of the BBC Symphony Orchestra leads on the podium.