Music, correspondence and other papers, photographs, and additional materials by and about the American composer and educator Seymour Shifrin (1926-1979)
Correspondence and other papers, photographs, and additional materials by and about the Russian-American pianist Vladimir Horowitz (1903-1989) and his wife Wanda Toscanini Horowitz (1907-1998)
Correspondence, music, and photographs by and about the American music librarian, critic, music administrator, recording executive, and program annotator Leonard Burkat (1919-1992)
The Frederick and Rose Plaut Papers consist mainly of photographs taken by the German-American recording engineer and photographer Frederick Plaut (1907-1985). Correspondence and other papers relating to Plaut and his wife are also included.
Music, correspondence and other writings, photographs, and additional materials by and about the American composer, conductor, and teacher Charles Shackford (1918-1979)
Music, correspondence and other writings, photographs, and additional materials by and about the American composer and insurance executive Charles Ives (1874-1954)
The Robert Shaw Papers contain annotated musical scores, correspondence, office files pertaining to a variety of topics, photographs, sound recordings, and other materials, by and about the American conductor Robert Shaw (1916-1999).