The paper was presented as part of session 311 “Notes on Notes: Introducing Archival Description of Notated Music, the Music Library Association’s New DACS Supplement” at the Society of American Archivists, Washington, DC, 16 August 2018. This paper discusses the benefits of appraising for enduring value when evaluating notated music materials. The various facets of enduring value are reviewed, and a focus is placed on examples from Special Collections in Performing Arts (SCPA), Michelle Smith Performing Arts Library, at the University of Maryland