A professional development programme for music educators was designed and administered to include institutional and personal professional strategies for the enhancement and growth of music teachers' knowledge base and actions. Supervisors and targeted practitioners in a large public school system built an innovative programme, applying current strategies from the music education literature of successful practices to develop a music curriculum for kindergarten-through-12th grades, establish music technology in classrooms, teach music literacy and composition techniques, enhance assessment of teaching and learning, apply reflective practice and staff development models, and mentor or peer coach music practitioners in at-risk schools. Quantitative and qualitative assessments indicated evidence of enhancements and increases in teachers' knowledge base, teaching skills, and overall professional development as music educators. The results also revealed productive practices in professional development for the urban school setting which may assist other researchers of continuing teacher education. (Contains 2 tables.)