Vocal music of the 16th-18th centuries consisting of villancicos (principally) and Latin sacred vocal music, edited from mss. preserved in Bogotá, Cuzco, Lima, Sucre, La Paz, Cochabamba, El Beni (Bolivia), Santiago, and Montevideo.

Published in memory of Claro; includes bibliography of Claro's musicological writings and musical compositions ([9] p. at end).

Includes bibliographical references (p. cvi-cxii) and index.

Spanish and Latin words, commentary in Spanish. Spanish words also printed as texts (p. xxxvii-cv).