A copy of Bricot's "Textus logices" (c.1510) on the endpapers of which music has been added. Kenneth Elliott identified it as a basse danse and provided a transcription for Purser's "Scotland's Music" where it was published with brief commentary. Elliott died without providing provenance; the source was rediscovered in 2015 by Elizabeth Cary Ford and Vivien Estelle Williams, who announced it on the University Library blog.
A snippet of what could be a basse danse appears on the front endpaper; a longer piece filling 2 staves is on the rear endpaper. The interpretation of the music as a dance has been questioned (Glamis2024) the authors also noting that Elliott's transcription was incomplete and (perhaps) inaccurate.
The book was once owned by Hector Boece (inscription 'Codex Hector Boethi" on title page) of Dundee, first principal of the University of Aberdeen, and also contains annotations by Theophilus Stewart and James Douglas, students at Aberdeen; the latter is just possibly James Douglas Earl of Morton (c1516-1581). who was regent of the University in the 1570s. It is thus probable that the music was copied.in Aberdeen.