4to (mm 180x135). Leaves 112 (of 114, missing the first and last blank leaves). Signatures [a]-n8, o10. Washed copy and slightly trimmed. Modern full brown Morocco binding with gold and blind-tooled decorations, signed Brugalla 1948. Seventeenth century handwritten ex libris in Spanish on leaf l8v.
Prima edizione. E' il primo libro spagnolo stampato con musica. Hain-Copinger, 13380; Goff, P997; BMC X, 39; IBE, 4783. Non in IGI, ma 1 copia censita a Trento; GW, M35537; Haebler, Biblioteca ibérica 557 “raro”; Haebler, Gesch. des span. Frühdruckes 383-4 & reprod.; Kurz, Handbuch der iberischen Bilddrucke des XV. Jahrh. 305; Lyell, Early Book Illustration in Spain 66 e tavole 49-50; Meyer-Baer, Liturgical Music Incunabula 233; Krummel-Sadie, Music Printing and Publishing 26.