Openings: l5-l7 (ff. 65v–68r)
Voices: [Triplex], Medius, Contratenor, Tenor, Bassus
Compass: 22 notes
Cantus firmus: O virum ineffabilem: third psalm antiphon, Lauds, St Martin (11 November) (see also E49).
Text: RH, 21899.
Concordances: Harley 1709, ff. 35r–37r (Triplex); GB-Lbl 34191, ff. 20r–22v (Bassus, incomplete); GB-Ome [printed book] 62. F. 8, f. i (index of lost Triplex partbook, c. 1520)
Edition: Musica Britannica 11, 94–104