In two programmes, John Florance examines the relationship between mental illness and musical genius. 1: The 16th-century madrigalist and murderer Carlo Gesualdo exhibited sadomasochistic tendencies throughout his life. Beethoven's physical afflictions led to great mental torture and Schumann's manic depression brought about his death. All have in common a profound influence on their music resulting directly from theirtormented states of mind. producer Paul Evans