Only one liturgical manuscript from Oseney Abbey survives, a compendium bound in the fifteenth century whose main parts are a text known as the Oseney Ordinal, a processional and a tonale; in addition it contains a manual, a collection of vesper responsory and alleluia verses, a kalendar and extracts from the customary and diurnal, as well as miscellanea copied into the manuscript at a later date. The components of the manuscript are of various dates from the late thirteenth century onward...