Rich with case material, the second edition of this respected text has been thoroughly revised with many new contributing authors and 85% new material. The Handbook comprehensively explores music therapy theory, research, and practice. Chapters cover foundational concepts and therapeutic processes, major approaches to practice, and clinical applications with people of all ages. The second edition has a heightened focus on diversity, equity, inclusion, accessibility, and cultural humility. Expert contributors describe state-of-the-art practices for using music to foster clients' well-being and recovery in a broad range of mental health, medical, and community settings. New to This Edition Expanded coverage of working with marginalized communities, including racially minoritized, refugee, LGBTQIA+, and neurodiverse clients, and an increased emphasis on therapist reflexivity. Provides an integrated conceptual framework for understanding different music therapy approaches. First edition editor Barbara L. Wheeler is joined by Michael Viega and Andeline dos Santos, who bring fresh perspectives and a more international scope.