Book excerpt: A comprehensive textbook detailing theory, practice, and research on the Bonny Method of GIM, and the many variations that have evolved since its inception. Part one provides an overview of Bonny's method and an overview of her music programs. Part two describes the many applications of GIM with children, adolescents, medical conditions, and psychological problems. Part three explains how GIM can be practiced within Jungian, psychodynamic, Gestalt, and transpersonal orientations. Part four covers advancements to Bonny's method, including an approach to client assessment, a new method of group work, new music programs, and various methods of analyzing music programs. Part five deals with theory and research on GIM. Part six deals with ethics, training, supervision, and international advances in GIM. The Appendix provides the professional code of ethics for GIM and a comprehensive list all music programs developed by Bonny and her followers.