It includes pre-1800 opera scores and libretti, as well as nineteenth and twentieth century titles, instrumental works, and theoretical treatises. Most items are first editions of operas and libretti and several are in manuscript format. Printed editions predominate. The chronological emphasis is from 1600 to the early twentieth century. The geographic emphasis is on France, England, Italy, and Germany.
Present acquisitions are selective.
Language Not applicable. Most titles are catalogued for the library's on-line catalogue. Uncatalogued material is also accessible. LC subject headings are used. The material is arranged according to an in-house classification scheme based on accession numbers.