Bequeathed in 1929 by Alexander Wood Inglis of Glencorse (1854-1929), Secretary of the Board of Manufactures in Scotland, the collection reflects his interests in Scottish songs and military music, though it contains many examples of English songs and keyboard music. It totals 306 volumes, 27 of which are in manuscript, containing 740 items of the 18th and the 19th century and including many single-sheet songs.
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 Libraryıs Catalogue of Manuscripts.