The example of organum on our listening list is one of Perotinus’s best known works: Viderunt Omnes. This page discusses the composer that perfected the Notre Dame style of organum. Please pay close attention to the description of Notre Dame style organum that Pérotin wrote. Introduction Pérotin (fl. c. 1200), also called Perotin the Great, was a … Continue reading Perotinus (Pérotin)