Texts and Images Currus pharaonis [...]
Breviaries (liturgical books that include all the texts needed for the Divine Office) can contain many different types of texts arranged in many different arrangements, since the liturgy varied in different locations and in different religious orders.
Stylistically, this manuscript closely resembles two secular music sources, Trouvère O, and Trouvère X, from the 13th century in the handwriting, musical notation, and illuminations (esp. Trouvère O).
We can explore the chants in more detail, looking for concordances in Cantus: A Database for Latin Ecclesiastical Chant