This product is the sheet music, not an audio download. Mass of the Lamb is a monophonic melody written for accompaniment by guitar or piano harmony. It includes five service music parts. No penitential part has been written. The first part is “Glory to God.” The second part is the pre-consecration “Holy”.  The third part is three interchangeable post-consecration songs “When We Eat This Bread,” “We Proclaim Your Death,” and “Save Us Savior,” adding variation to annual liturgical cycles. The fourth part is the “Amen.” The fifth part is “Lamb of God.”