The book discusses the surviving collection of cantorales (or libros de coro or choir books) found in the ecclesiastical museum of the church of Baclayon in the province of Bohol. This study, in particular, focuses on the Kriial de esta Yglesia de Baclayon dated 1826 which contains Mass cycle compositions used in the liturgical service of the Roman Catholic Church.

1. Church music - Philippines - Bohol - Baclayon - History and criticism 2. Church music -Catholic Church - 19th century 3. Service books (Music) - Catholic Church 4. Baclayon, Bohol (Philippines) - Church history - 19th century