Clinton Arrowood was a flautist and illustrator best known for his unique drawings of animals as musicians. The collection contains Arrowood's illustrations for musical events at the Peabody Institute and elsewhere, as well as drawings for children's books and other media. It includes original drawings, reproductions, clippings, and other documents related to Arrowood's career.

Enrico Caruso (1873-1921) was one of the most popular operatic tenors of his era. After beginning his career in his native Italy, Caruso immigrated to the United States and became a star at the Metropolitan Opera. His papers include manuscript and published scores belonging to Caruso, photographs, correspondence, scrapbooks and clippings about his career, caricatures and other artwork, recordings, and ephemera.

Hugh Raymond Newsom (1891-1978) was an organist and composer who lived in Baltimore. The collection includes manuscript scores of music composed by Hugh Newsom or by his wife, harpist Marjorie Brunton Newsom; documents related to Hugh Newsom's career; and reel-to-reel recordings of his music.

Joseph Schillinger was a theorist and composer famous for developing the Schillinger System, a method of deconstructing music using geometric phase relationships. The collection contains correspondence, recordings, scrapbooks, photographs, artwork, manuscript scores, and other documents related to his professional and personal life.