A restoration of the second edition of the ground-breaking book by pioneer Mary Priestley. In addition to presenting a practical overview of music therapy with many case examples from her own work, Priestley also lays out the basic premises for the major improvisational model that she developed, Analytical Music Therapy. Included are her innovative, psychoanalytically based techniques for working with conscious and unconscious material through improvisation, and her forward looking experiential method of training music therapists called Intertherap. The historical significance of this book is clearly seen today in the worldwide recognition of Mary Priestley's work in the field of music therapy.