Descripción en Youtube:
Magister Perotinus / "Pérotin le Grand" - Viderunt omnes
http://en.wikipedia.org/wiki/P%C3%A9rotin
The Early Music Consort of London, David Munrow
http://www.medieval.org/emfaq/performers/munrow.html
*** If the copyright holders don't want this recording to be uploaded on Youtube, please contact me and I will delete it as soon as I read it. ***