Title: [Musical treatises, with Italian secular polyphony].
Authors: Boethius, -524; Guido,; Muris, Johannes de, approximately 1300-approximately 1350.; Muris, Johannes de, approximately 1300-approximately 1350.; Egidius, active 14th century.; Marchetto, active 1305-1326.; Marchetto, active 1305-1326.; Petrus; Vitry, Philippe de, 1291-1361.; Biblioteca comunale di Siena.
Subjects: Music theory History Manuscripts.; Music Manuscripts Italy Siena.