I don't know if this could be of interest, but here is a small collection of music from the 13:th and 14:th century that could perhaps prove useful in some way.
La Tierche Estampie Royal:
http://www.youtube.com/watch?v=x5zhWRAZTfI
La Sexte Estampie Real:
http://www.youtube.com/watch?v=3KBEoi_4GNI
La quinte estampie real - anonimo francese XIII sec.:
http://www.youtube.com/watch?v=bKfBaOvSKjk
Saltarello médiévale (italian):
http://www.youtube.com/watch?v=aOAPDRr7Eg0&feature=related
Danse médiévale - Anonyme:
http://www.youtube.com/watch?v=CdTAw...eature=related
La prime estampie real (french):
http://www.youtube.com/watch?v=214E9...FC5BF&index=32
La seconde Estampie Royale (french):
http://www.youtube.com/watch?v=TqZUN...DFC5BF&index=1
Estampie - Robin Hood and Maid Marian:
http://www.youtube.com/watch?v=9180-...eature=related
Thibaut de Champagne : Seigneurs, sachiez qui or ne s'en ira, par René Zosso:
http://www.youtube.com/watch?v=k-gTUUgZCQo