Music from the Earliest Notations to the Sixteenth Century

2 Maistre Nicole Oresme, Livre de Politiques d’Aristote, ed. A. D. Menut (Philadelphia: American Philosophical Society, 1970), p. 347;
quoted in Julie E. Cumming, “Concord Out of Discord: Occasional Motets of the Eearly Quattrocen to” (Ph.D. diss., University of
California at Berkeley, 1987), p. 14.