Links:
Le Corpus des Messes Anonymes du XVe siècle
The Trent Manuscripts 87-93: Complete Digital Facsimile
Digital Image Archive of Medieval Music
C.M.M.E.: Dynamic Early Music Editions
The Caron Website
Motet Online Database (1475-1600)
The Theoretical Works of Johannes Tinctoris
Center for the History of Music Theory and Literature
ChoralWiki