FREZZA DELLE GROTTE, GIUSEPPE. Il Cantore Ecclesiastico . . . Tomo Primo, Terza Impressione [all published]. Folding woodcut plate depicting Guidonian hand. 164, [7] pages, including additional title with large woodcut * FOGLIETTI, IGNAZIO DOMENICO. Il Cantore Ecclesiastico; ossia, Metodo Facile per imparare il Canto Fermo. [8], 3-252 pages; lacks A1 (additional title dated 1786?). Together, 2 volumes, with letterpress music in text throughout. 4to, 241x177 mm, contemporary stiff wrappers, and 12mo, 149x97 mm, 19th-century gilt- and blind-stamped leather; toning or browning and light marginal dampstaining in the first work, contents of the second generally clean. Padua: Gio. Manfré, 1733; Pinerolo: Giuseppe Peyras & Giacinto Scotto, 1788