Overview: Katie Derham presents from the Royal Albert Hall, as the opening concert of the 2021 Proms season continues in front of a live audience. Conductor Dalia Stasevska and the BBC Symphony Orchestra perform Sibelius’s thrilling Second Symphony. They are joined by soloists including soprano Elizabeth Llewellyn and tenor Allan Clayton for the world premiere of When Soft Voices Die, a poignant piece for our times by Scottish composer Sir James MacMillan.