Katie Derham presents live coverage from the Royal Albert Hall of the opening part of the climax of the classical music festival. Latvian accordionist Ksenija Sidorova and Australian tenor Stuart Skelton join conductor Sakari Oramo, the BBC Symphony Orchestra and the BBC Singers in a programme that includes Malcolm Arnold's Variations on a theme of Ruth Gipps, a special arrangement of Barber's Adagio for Strings, and pieces by Ravel, Piazzolla and Wagner. Katie is joined by guests Gareth Malone and Maggie Aderin-Pocock.