Carl Dahlhaus was a German musicologist who was among the leading postwar musicologists of the mid to late 20th-century. A prolific scholar, he had broad interests though his research focused on 19th- and 20th-century classical music, both areas in which he made significant advancements. However, he remains best known in the English-speaking world for his writings on Wagner. Dahlhaus wrote on many other composers, including Josquin, Gesualdo, Bach and Schoenberg.
