Lilly Music Library has a variety of unique items, including facsimile scores reproduced from original manuscript sources or early editions; music memorabilia/boxed sets; and special editions.
Here is just a sampling of what you might find:
14th century Italian part songs in Il Codice Squarcialupi: Ms. Mediceo Palatino 87, Biblioteca Laurenziana Di Firenze (facsimile)
Chansonnier de Jean de Montchenu (heart-shaped, facsimile)
Early Tudor music in The Eton Choirbook (facsimile)
John Cage's Indeterminacy: Ninety Stories (score on cards)
Radiohead's OK computer: Oknotok 1997 2017 (boxed set)
You can find unique materials using the search function in JumboSearch.
Music Collections at Tisch Library
Tisch Library houses a number of music special collections, most notably the Frédéric Louis Ritter Collection, as well as archival collections located in Digital Collections & Archives (DCA), including composer T. J. Anderson's Papers, 1889-2019, sheet music collection by Tufts composers (1883 - 1943), and composer John McDonald's Papers.
For assistance with music-specific collections, please contact Anna Kijas.
For questions about accessing Tisch Library special collections, please contact Chris Barbour.
For questions about archival collections, please contact the Digital Collections & Archives staff.