This comprehensive catalog delves into the musical treasures of the Santiago de Chile Cathedral, with over 1700 handwritten and printed scores from 1770 to 1940. It contains works by renowned composers, including those who never visited Chile, such as Joseph Haydn and Wolfgang Amadeus Mozart. Divided into two volumes, this catalog offers detailed descriptions and indexes, providing invaluable insight into the musical history of Spain and Latin America from the 18th to 20th centuries.