Drawing on Jungian psychology, object relations theory, trauma theory, and the concept of intersubjectivity between therapist and client, music therapist Austin (New York U.) discusses these theoretical underpinnings and the process of helping patients re-connect with dissociated aspects of themselves through breathing, toning, and vocal improvision techniques such as 'free associative singing' and 'vocal holding' that she developed. Although most of the interventions illustrated in case examples feature individual patients, many of them can be adapted to group work. Annotation ©2009 Book News, Inc., Portland, OR (booknews.com)