ROSIE Biss, co-principal cellist of the Northern Sinfonia, will perform with friends Andre Swanepoel (violin), Iona Brown (violin) and Rose Redgrave (viola) to form the Derwent String Quartet on Saturday for St Briavels Music Society.

The programme will include string quartets by Haydn, Shostakovitch and Schubert. Tickets on the door (students free).