Openings: d6-d8 (ff. 22v-25r)
Voices: [Triplex], [Primus Medius], [Secundus Medius], Contratenor, Tenor, Bassus
Compass: 15 notes
Cantus firmus: Alma redemptoris mater: antiphon to Magnificat at Vespers of the BVM, Purification to Lent, and from Corpus Christi (octave) to Advent; also processional antiphon.
Text: see Texts
Editions: Musica Britannica 10, 81–9; Antico RCM56 (as William Stourton)
Recording: 2012b