A-Wn-ms-Cod.11883: Incomplete in this source: Agnus absent / Mostly without text / This gathering is written in the Alamire workshop / Title as in ms (index) = 'Missa 4 vocum' / Osanna: [Tenor]: 'Osanna ad longum'; [Contratenor]: 'Fuga in subdyapenthe' / Benedictus: [Tenor]: 'Benedictus sanctus est'
V-CVbav-ms-Capp.Sist.35: Composer name in ms = 'ysaac' / Et iterum: Marginal correction: forgotten notes (on 4 lines) to be added after 'finis' / Osanna: 'Tenor': 'Fuga in dyapente unu[m] tempus pausando' / [Contratenor] and 'Tenor': 'Benedictus tacet' [sic]; [Superius] and [Bassus]: 'Osanna ut supra' / Agnus I: [Tenor]: 'Fuga in dyatessaro[n] pausando t[em]p[u]s unum' (dyapenthe was corrected into dyatessaro[n]); [Bassus]: 'Primus Agnus sup[r]a Tenorem' (other handwriting) / Agnus III: Above [Superius]: 'Bassus decimas do omn[ium] que possideo'; Beneath folio: 'Bassus Cantatur in decimis sub cantu'
