Proms 2015 Proms Extra

As we launch our complete symphonic cycle, explore Sibelius’s symphonies and their historical context with Charlotte Ashby and Stephen Johnson. Sara Mohr-Pietsch presents.

No ticket required. Entry is on a first-come first-served basis (doors open 30 minutes before the event begins; capacity is limited)

Edited version broadcast on BBC Radio 3 during tonight's interval