Explore Chanting Sources:Chanting ChantingThis category has 3 sources. Crocker RL. 0. An introduction to Gregorian chant / Richard L. Crocker.. Bourgeault C. 2008. The wisdom Jesus: transforming heart and mind : a new perspective on Christ and his message. Bourgeault C. 2006. Chanting the Psalms: a practical guide with instructional CD.