V-CVbav-ms-Capp.Sist.36: Composer name in ms = 'Petrus de la rue' / Title as in ms = 'Missa de virginibus' / Kyrie: 'Tenor': 'O q[uam] pulchra est casta generatio cu[m] caritate' (red ink) / Et in terra pax and Qui tollis: 'Jh[es]u xpe' (red ink) in all voices / Qui tollis: 'Barriphari': 'Verte folium hackino' / Patrem: [Superius] and 'Tenor': 'Jh[esu]m xpm and 'Ex maria virgi[n]e' (red ink) / Pleni: 'Contrate[nor]' and 'Bassus': 'Duo' / Osanna: 'Tenor': 'O q[uam] pulchra est casta generatio cum caritate' (red ink) / 'Tenor' and 'Bassus': 'Benedict[us] tac[et]'; [Superius]: 'Duo' / [Superius]: 'In no[m]i[n]e d[omi]ni tacet'; 'Contra[tenor]': 'In nomine domini in contratenore tacet'; 'Osan[n]a ut supra' or 'Osa[nn]a ut prius' in all voices