Secular (as opposed to monastic) antiphonary for liturgical use in Lyon, containing the chants of the Divine Office for major feasts and Sundays. Possibly copied for use in the Cathédrale Saint-Jean-Baptiste in Lyon, as the Feast of Saint John the Baptist is the only sanctoral feast distinguished with a large puzzle initial (f. 111v). The other sanctoral feasts included are for Agnes, Agatha, Philip and James, John and Paul, Peter, Paul, Lawrence, the Assumption of the Virgin, Michael, Cecilia, and Andrew. The last gathering of the manuscript (f. 172-176), containing 9 chants for Psalm 94 and antiphons, may be a later addition, as its layout diverges from that of the rest of the manuscript. Some 15th- and 16th-century marginal annotations and corrections.