The collection consists of printed materials and correspondence compiled by the noted British music librarian, bibliographer, and musicologist Alec Hyatt King. The printed materials include offprints of articles, complete journal issues, exhibition catalogs, catalogs from music publishers and booksellers, membership lists and organizational histories, and concert programs.

David Nadien was an American classical violinist and Mannes College of Music teacher. The collection includes programs, contracts, reviews, biographies, obituaries, awards and honors, photographs, public relations materials, a small amount of correspondence, sheet music, and a 1952 "Seasons Greetings" ceramic plate from the television variety show, "Your Show of Shows."

This collection contains records and ephemera from the Department of Music.

The collection consists of correspondence, documents, clippings, music programs, photographs, scrapbooks, and memorabilia relating to the musical career of Hermann Dossenbach. Also present in the collection is Dossenbach's masonic Corinthian Temple Lodge pin.

Photographs, clippings, and programs, as well as inscribed copies of her books, FAITH IS A SONG and YOUR VOICE AND YOU. Portions of the typescript and autograph manuscripts of the latter book are also included.

Julius Rudel (1921-2014) was an opera and orchestra conductor who graduated from the Mannes School of Music in 1942. He served as music director for several organizations, most notably as director and principal conductor for New York City Opera from 1957 to 1979. The collection includes annotated conducting scores, notes, a scrapbook of news clippings, programs and playbills, correspondence, biographical material, and photographs.

Collection consists of concert programs for Mannes School of Music student and faculty recitals as well as promotional materials for other school performances. Also includes press releases and event calendars. Mannes was established in 1916 by David and Clara Mannes and became a division of The New School in 1989. As of 2018, Mannes is part of The New School's College of Performing Arts.

This collection consists of news clipping files and scrapbooks that document Mannes from its founding through the early 1990s. The scrapbooks, which cover the school's early history through the 1960s, contain concert programs, advertisements, and news articles. Other scrapbooks, some from before the establishment of Mannes, document the activities of the school's founders, David and Clara Mannes, in their work as musicians and educators.

Peter Schickele (b. 1935) is an American composer, music educator, and satirist. He is best known for his comedy pieces composed by the fictional character P.D.Q. Bach. The collection contains manuscript and engraved scores and parts, sketches, revised and annotated copies of Schickele's work. In addition, the collection contains scripts of dramatic pieces or spoken introductions, correspondence, and memorabilia.

Sylvia Marlowe (1908-1981) was an important mid-twentieth century American harpsichordist. The Sylvia Marlowe collection documents her performance career, predominantly through scores, many inscribed to her by composers. Additionally, photographs and textual publicity materials provide further context for Marlowe's performances and recordings.