Five functions by this French composer survive in the Chantilly Manuscript. He was most likely a younger modern of Machaut and he might have already been a papal vocalist because the Chantilly Manuscript contains functions by persons of this place. His virelai is situated in eight different resources attesting towards the transfer and reputation of Vaillant’s compositions. The five parts can generally end up being characterized as established with well balanced rhythms, several text getting sung at onetime, syncopated rhythms most likely for didactic factors, and some reasonable projects with imitations of organic sounds. A unique quality that separated Vaillant’s function from Machaut’s was his usage of cross-rhythms.