Course Introduction Textbook Sample Assignments and Quizzes (with answer key) for the Early Sacred Music course. Gregorian Chant plays a large role, and it will form the basis of Christian music lasting to this day. But there’s much more. We look at how the chant evolved into elaborate forms with many voices, and the c Memoria Press product: https://www.memoriapress.com/curriculum/art-and-music/early-sacred-music-workbook/