English writer and poet Wystan Hugh Auden (1907-1973) introduced the term "parable-art" in his essay "Psychology and Art To-Day" (1935) as a means of describing works of art that are both message-bearing and moralistic in nature. Auden believed that art had the power to influence the affairs of the world, and felt it was the artist's obligation to work for the betterment of society. Though he ultimately rejected this conviction, Auden's influence on his English contemporaries in the 1930s was profound. Perhaps the most notable musician who embraced Auden's ideal was Benjamin Britten (1913-1976), who so often embedded moral, social, and humanitarian themes in his works. Britten was deeply influenced by Auden's philosophical views; therefore,...