who was perotin
Video: Leonin and Perotin: Musical Contributions, Polyphony & Ars Antiqua. The development of polyphonic, or multi-part music, was a fundamental part of the late Medieval period, and it forever influenced music thereafter. In this lesson, learn about how polyphony developed through the Medieval church composers Leonin and Perotin. Music 101: Help and Review / Humanities Courses.