Book excerpt: A comprehensive guide to music therapy with young children, providing a detailed examination of development from birth to age five, with theoretical perspectives and extensive scales of developmental milestones. Information is compiled in nine different chronological periods, including benchmarks for physical, sensory, motor, cognitive, emotional/social, and language development. The book then synthesizes current research on musical development in young children and provides lists of musical behaviors as well as a presentation of the theories of musical development proposed by Briggs/Bruscia and Edwin Gordon.