This subseries contains documents related to Beeson's activities as a composer, including activities related to such organizations as the American Academy of Arts and Letters, the American Academy in Rome, the American Society of Composers, Authors and Publishers (ASCAP), the Pulitzer, and the National Endowment for the Arts; composition projects including completed operas as well as aborted opera conceptions; recommendations; delivered lectures; publications; biographical materials on figures in the arts such as Aaron Copland, Benjamin Britten, and Douglas Moore; and correspondence with colleagues in the arts including Paul Henry Lang, Otto Luening, Douglas Moore, William Saroyan, John Updike, Charles Wuorinen, and others. It is organized alphabetically.