Jonathan Goldman, M.A., is an award-winning musician, composer, writer, teacher, and chant master. An authority on sound healing and a pioneer in the field of harmonics, he is the author of several books, including Healing Sounds, and the founder and director of the Sound Healers Association. Andi Goldman, M.A., L.P.C., is a licensed psychotherapist specializing in holistic counseling and sound therapy, the director of the Healing Sounds Seminars, co-director of the Sound Healers Association, and coauthor, with Jonathan Goldman, of Chakra Frequencies. The authors live in Boulder, Colorado.