A late 11th-early 13th century parchment manuscript, the component parts of which were bound together in 1245. Until recently only nos. 1, 4, 6,11 and 13 were considered polyphonic, but according to Stäblein, 8 other pieces must be added though the harmonies are not always ideal in some of these. Score notation is used in nos 4, 6 and 13 only. Other pieces look like monodies, but are really written in separate voice parts.
The most important and oldest part of the manuscript (dated 1096-1099) runs from f. 32-118 and contains two main sections: f. 32-62v and 63-118. The first of these sections contains principally versus and Benedicamus Tro; the second, Epistle and Ordinary Tro and an important sequentiary. Folios 119-148 contain 13th century votive offices for the B.M.V., initially on red four- or five-line staves, in contrast to the older parts of the codex which use Aquitanian point notation on a single dry-point guide-line which may have no clef. A Proser from St. Martial takes up f. 149-228 and dates from the end of the 12th century.
IIIF Manifest