Maren Morris - Rich

Of great importance are G.'s works in the field of music theory, in which he relied on musical practice (recognition of real frets), took a progressive position in assessing the past and the present. His first work, An Introduction to Musicology ... (Isagoge in musicen ..., Basel, 1516) contains chapters on salmization, intervals, frets and their application. Ch.labor G. - muses. the Dodekachordon treatise (Dodekachordon - The Twelve-Runner, 1519-39, ed. 1547) - a study of medieval history. church. frets. Based on the works of ancient Greek. theoreticians and having studied the features of diatonic, he establishes the existence of 12 diatonic. frets (and not 8, legalized by medieval music. theory). He was the first to substantiate the Ionian (major) and Aeolian (minor) frets. The 3rd part of the treatise contains numerous examples from the works of predecessors and contemporaries G. - J. Okegem, J. Obrecht, Josquin Depre and other composers of the 15-16 centuries., confirming the widespread use of the described frets in muses. Renaissance practice.