http://www.youtube.com/watch?feature=pl ... Y_N7lp0jE#!
Gothic chant of the early Organum Era. (School of Notre-Dame)
Title: "Kyrie" for Two Voices
Service: Mass for the Nativity of the Virgin.
Performers: Ensemble Organum, Director: Marcel Peres
Album: "École De Notre-Dame (XIIIe siecle): Messe De La Nativité de la Vierge"
