GLAREAN, [H.]: Dodekachordon. Basileae, (H. Petri 1547) Folio. 10 ff, 470 pp, 3 ff. Numerous musical examples in type printing. Some figuratively decorated woodcut initials, several diagrams and illustrations of historical musical instruments. With entries by old hand. 2 leaves (p. 281-284) as facsimile on old paper. Contemporary vellum with attached vellum of old manuscript, professionally restored. Renewed and fitting white front and endpapers

ONE OF THE MOST IMPORTANT BOOKS ON MUSIC IN THE 16th CENTURY. First edition of known rarity. Not in the JAP (DVD) and not traceable in the trade for 25 years. - This important work of music theory, dedicated to the Cardinal and Bishop of Augsburg, Otto von Waldburg, is one of the most important music books of the 16th century. Based on the testimonies of ancient theorists and especially those of the older Dutch, Glaren seeks to put an end to the doctrine of the 8 modes. The doctrine of the 12 church modes for both chorale and figural music, is his decisive achievement for the history of music theory and harmony. Special importance is given to the work as a musical source by the inclusion of numerous movements in type by contemporary composers, such as A. Brumel, S. Ditrich, D. à Goes, J. Isaac, L. Senfl. In addition, there are a number of monophonic ode settings by Glarean. His key theory was adopted by contemporaries soon after its appearance, such as Ponthus de Tyard, Zarlino, and G. Dressler. - RISM I, 366; Wolffheim I, 673; Hirsch I, 226; Cortot 89. See also exhibition catalog Wolfenbüttel 1985.