A long-awaited revision of the classic 1977 text that laid the foundations for the development of their pioneering improvisational practice of music therapy. It is a large book of nineteen chapters and over 500 pages with almost 5 hours of clinical work on four CDs that accompany the print book, or with the same audio files embedded in an enhanced e-book. Included are clinical examples of music therapy with twenty-four variously disabled children, 5 comprehensive case studies, detailed illustrations, notational examples and discussions of clinical and musical techniques, 3 evaluation scales, and a complete set of improvisation techniques.