Sbaffi, Edoardo, and Mônia Feller Albrecht. “Musicum Versus Cantor: A Historical Perspective about the Dichotomy Between Theorists and Performer Musician”. Per Musi, no. 38 (August 11, 2018). Accessed May 31, 2023. https://periodicos.ufmg.br/index.php/permusi/article/view/5262.