The purpose of this instrumental multiple case study was to examine and compare five inservice music teachers' and one administrator's perceptions of three school-university partnership programs, in various stages of development, across one semester. Data sources included participants' observation notes, researchers' field notes, and individual semi-structured interviews. The following themes emerged from the data: (a) benefits of reinforcement, (b) benefits of promoting best practice and research, (c) challenges of navigating multiple teachers, (d) challenges of time management, and (e) observed differences between partnerships. Participants offered the following suggestions to implement and sustain successful partnerships: (a) preservice music educator preparation, including preparation in music planning, responsive teaching, and developing student connections, and (b) logistics, including increased communication, understanding all aspects of full-time music teaching, and expanding the number of visits. Implications for practice include engaging stakeholders in equal planning, reflection, and evaluation to create mutually beneficial partnership experiences.