There have been series of concerns regarding Western wind instrumental instruction in Ghana mainly due to the lack of comprehensive wind band pedagogy curriculum in Ghanaian universities and Colleges of Education (CoE). The consequence of this lack is noticeable among both formal and informal wind instrumental ensembles across the country. Employing a mixed-method design, this research examined strategies that could lead to effective and efficient band rehearsals. Data was gathered concerning the proportion of instructional time spent on teaching techniques/skills and concepts, on active music making, and rehearsal management. From a review of the available literature on best rehearsal practices, new ways were designed to improve instrumental rehearsal in an informal setting. Findings revealed that the amount of time spent on the fundamentals and active music making increased over the course of the study thereby resulting in high technical capabilities and growth of both students and instructor. It was therefore recommended that Ghanaian band instructors work to increase their knowledge of instruments, including good playing technique, the ability to model effectively on a variety of instruments, and should develop a teaching style that is most appropriate to their learners.