To me this piece is about contrasts between light and dark, speaking and singing, and tension and relaxation'

Jennifer Stumm, Chair of Viola Studies at the Royal College of Music, presents a masterclass on the Bartók Viola Concerto at the 2014 SÁo Paulo Viola Day.

Watch: Tabea Zimmermann performs Bartók's Viola Concerto

Watch: Kim Kashkashian gives Walton Viola Concerto masterclass