D-Ju-ms-4: Composer name in ms = 'Pe. Rue' / Title as in ms = 'Missa quinque vocum supra i[n]cessame[n]t ' / Kyrie: 'Barrilatrans': 'Fuga indyatessaron et sic per totam missam' / Kyrie I: 'Incessament' (in red ink) in all voices / Pleni: [Superius] and 'Contratenor': 'Duo'; 'Bassus': 'Pleni in barricanore obmutescit' / Benedictus: 'Tenor': 'Benedictus in no[m]i[n]e d[omi]ni tacet'; 'Bassus': 'Benedictus tacet' / In nomine: [Superius]: 'In no[m]i[n]e d[omi]ni tacet, Osanna ut supra'; 'Contratenor': 'In nomine domini tacet'; 'Tenor': 'Benedictus in no[m]i[n]e d[omi]ni tacet', Osanna ut supra'
D-Ju-ms-8: Composer name in ms = 'Petrus de [la] Rue; 'la' in composer name written in musical notation / Title as in ms = 'Missa quinque vocum' / 'Bassus': 'Fuga in dyatessaron et hic per totam missam' / Kyrie I: 'Incessament' (in red ink) in all voices / Pleni: [Superius] and 'Cont[ra[enor]': 'Duo'; 'Pleni sunt in tenore tacet'; 'Barricanor': 'Multum appetit et paucum potest' / Benedictus: [Superius] and 'Contra[tenor]': 'Duo'; 'Benedictus in bassu tacet'; 'Tenor': 'Benedictus qui venit & In nomine domini in tenore tacent' / In nomine: 'Tenor': 'Benedictus qui venit & In nomine domini in tenore tacent'
NL-SH-ms-154 (olim 72B): Composer name in ms = 'P. Rue' / Title as in ms = 'Missa Incessament' / Canon in [Bassus] for the entire mass: 'Barrica[n]or': 'Fuga In dyatessaron et sic per totam missam' / Kyrie I: 'Incessament' (in red ink) in all voices / Pleni: [Superius] and 'Contra[tenor]': 'Duo' / Benedictus: [Superius] and 'Contra[tenor]': 'Duo' / In nomine: 'Bass[us]': 'Duo' (canon), 'Erunt duo In carne una'
V-CVbav-ms-Capp.Sist.154: Title as in ms (index) = '[Missa] Incessament' / Canon in [Bassus] for the entire mass / [Tenor]: 'Pleni tacet'; [Bassus]: 'Pleni tacet' and 'Osanna post Benedictus' / [Tenor]: 'Benedictus tacet'; [Contratenor]: 'Duo' / In nomine: [Bassus]: 'Duo'
V-CVbav-ms-Pal.lat.1980: 'Pleni Tacet' / 'Benedictus tacet' / 'In nomine tacet'
V-CVbav-ms-Pal.lat.1981: Composer name in ms (Index) = '[la] rue' / Title as in ms (index) = 'Missa incessament' / 'Pleni non sunt' / 'Benedictus tacet' / In nomine: 'Duo'
