British writer and music editor and publisher Donald Mitchell, professor of music at University of Sussex, lectured on "The Vocabulary of Expressionism: Music and Related Arts at the Turn of the Century."  The author of a three-volume life of Mahler, Gustav Mahler (1958, 1975, 1985), Mitchell was a friend and admirer of Benjamin Britten, at whose suggestion he founded in 1965 the music publishing firm Faber Music, of which Mitchell was the first managing director.