"An Introduction to Music Therapy: Theory and Practice, Third Edition," provides a comprehensive overview of the practice of music therapy for the 21st century. It looks at where we have been, where we are today, and where we might be in the future. Combining sound pedagogy with recent research findings, this new edition has been updated and expanded to reflect changes in music therapy practice over the past nine years. Part I includes definitions of music therapy, indicates typical clinical settings, traces historical developments within the profession, and describes how humans respond to musical stimuli. Part II is devoted to specific clinical populations most frequently served by music therapists, and therapeutic approaches suitable for different clientele. Part III, professional issues in music therapy, gives the reader information about the music therapy treatment process, professional ethics, and research methodology commonly employed by music therapists. Although written primarily as an introduction to the field, it is also appropriate for use by music therapy clinicians and practitioners in other helping professions who wish to learn more about how music is used with persons who have illnesses or disabilities. This book was written especially for dedicated students and professionals who believe they can make a difference in the lives of these people who have special needs.