La Trobe University - Library: Medieval Music Database - Annual cycle of feasts of liturgical chant, liturgical polyphony and secular music of the late middle ages.

Medieval Music Database - Browse By Manuscript

Aosta, Biblioteca del Seminario Maggiore A1 D19 - not catalogued here.
Bologna, Civico Museo Bibliografico Musicale, Ms Q 15.
Munich, Bayerische Staatsbibliothek, Clm 14274 (olim M.mus. 3232a)
Oxford, Bodleian Library, MS Canonici Miscellaneous 213
Trent, Castel del Buon Consiglio 90 - not catalogued here.
Trent, Castel de Buon Consiglio 93 - not catalogued here.
Zwettl, Zisterzienserstift, MS. without shelf-mark - not catalogued here.