[Grove Music Online]: Misattributed to Josquin in I-Ma E 46 Inf.
A-Wn-ms-Cod.1783: Composer name in ms = 'Rue' / Kyrie I: [Superius] and [Tenor]: 'Cum iocunditate' (in red ink) / Sanctus: 'Tenor': 'Cum Iocunditate' (red ink); 'Tenor': 'Descende g[ra]datim Canon' / 'Tenor': 'Pleni tacet' / Benedictus: 'Osanna ut supra' / Agnus I-III: Double texted in '[Contra]tenor' and 'Bassus' part
D-Ju-ms-22: Kyrie I: 'Tenor': 'Cu[m] iocunditate' / Sanctus: 'Tenor': 'Cum iocunditate' (red ink); 'Tenor': 'Canon: descende' / Benedictus: 'Osanna ut supra' / Agnus I-III: Double texted in this source
NL-SH-ms-15 (olim 72B): Composer name in ms = 'Rue' / Title as in ms = 'Missa Cum Jocundidate' / Kyrie I: Incomplete, right page is missing; [Superius] and 'Tenor': 'Cum Jocunditate' (red ink) / Christe: Incomplete, left page is missing / Sanctus: 'Tenor': 'Canon Gradatim [...]' / [Tenor]: 'Pleni tacet' (in red ink) / [Tenor]: 'Benedictus tacet' (in red ink)
V-CVbav-ms-Capp.Sist.45: Composer name in ms (index) = 'Pe dela rue' / Composer name in ms = 'Pe. de [la] Rue' ('La' in the composer's name written in musical notation) / Kyrie: 'Tenor': 'Cum Jocunditate' / Patrem: with 'Secundus superanus' / Sanctus: [Tenor]: 'Descende gradatim' / Benedictus: [Bassus]: 'Osanna ut supra'
