The collection of John Glen (1833-1904), member of a well-known Edinburgh firm of musical instrument makers, compiler of The Glen Collection of Scottish Dance Music (1891-95), and author of Early Scottish Melodies (1900). It was presented in 1927 by Lady Dorothea Ruggles-Brise, daughter of the 7th Duke of Atholl, in memory of her brother Lord George Stewart Murray. There are 900 items in 412 volumes, including six manuscripts; the printed material consists mainly of collections of Scottish songs and music of the 18th and the early 19th century, including music for the Highland bagpipe.
The pre-1801 items are recorded in the British Union-Catalogue of Early Music, London, 1957. The manuscripts are described and indexed in Vol. II of the Library?s Catalogue of Manuscripts.