Liens

 Renaissance Masses, 1440-1520
http://www.princeton.edu/~rwegman/mass.htm

 Digital Image Archive of Medieval Music
http://www.diamm.ac.uk/index.html

 Manoscritti Musicali Trentini del '400
http://www.trentinocultura.net/catalogo/manoscrittimusicali/portal/server.pt

 CMME: Dynamic Early Music Editions
http://www.cmme.org/