Volume 5 of the acclaimed series, Music from the Peterhouse Partbooks, contains the world premiere recording of a Mass by an anonymous English composer from the first half of the 16th century. Since the source of the cantus firmus has not been identified, the Mass remains without a name ("sine nomine"). The disc also includes an antiphon addressed to St. Augustine of Canterbury which is the only surviving work of Hugh Sturmy , a short and dramatic Ave Maria mater dei by Robert Hunt , whose Stabat mater is a highlight of vol. 3 of the series, and the sonorous and captivating Ve nobis miseris by John Mason , for men's voices in five parts. This recording is part of a 5-CD project which began in 2010. (Volumes 1-4 of the series were released with catalog numbers BHCD1002, BHCD1003, BHCD1004 and BHCD1005).