Violinist Madeleine Mitchell has performed in more than 40 countries and is especially noted for her advocacy of new music; several of Britain's top composers have composed new music for her. She is also an important educator and music administrator. Unusually, Mitchell began to commission new music quite early in her career, beginning with Fantasia, by Brian Elias, in 1986. Among the many other composers who have written music for her are Michael Nyman, James MacMillan, and Tarik O'Regan. An entire album, In Sunlight: Pieces for Madeleine Mitchell, is devoted to compositions she originated in performance. She released an album in 2019 of music by Grace Williams with the Chamber Ensemble of London, of which she has served as director. She returned in 2023 with the album Violin Conversations.