Robert Gass, EdD, coauthor of Chanting: Discovering Spirit in Sound, has a background in psychology, music and spiritual studies, among other disciplines, and has taught and led group chanting around the world. He is based in Boulder, Colorado. He is on the faculty of Omega Institute for Holistic Studies, in Rhinebeck, New York. He is also a composer and has recorded more than 20 CDs with his singing group, On Wings of Song. www.SacredUnion.com.