Monophonic carol on fol. 21r of a paper and parchment book of the early fifteenth century. The text (EEC 377) is written in the body of the page in cursive script; the music is written once at the bottom of the page on freely drawn staves, then again, more accurately, at the top. Both copies were then erased and are now nearly invisible.
The MS also contains the Notitia of Johannes des Muris and a number of notes and examples on music theory. Latin sermons, treatises, and Aquinas, De ente et essentia.