[Collection of musical theoretical works including Musica enchiriadis, Scolica enchiriadis, Hucbald's De harmonica institutione, works by Berno, Abbot of Reichenau, and anonymous works]Berno Abbot of Reichenau, Hucbald of Saint-Amand, Biblioteka JagiellońskaOpen the Tome
Musical theoretical treatises by Guido Aretinus, Joannes Cotton, Berno, Abbot of Reichenau, and othersVienna, Austria. Nationalbibliothek.Open the Tome
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