The purpose of this study was to develop a program for high school musical creation based on AI-convergence education. A theoretical foundation linking AI-convergence education with musical theatre creation was established through a review of relevant literature and an analysis of textbooks. Building on this foundation, we developed an AI-convergence teaching-learning model and a draft eight-lesson program through the convergence of project-based learning with STEAM product-type procedures. Content validity was then evaluated by an expert panel of 18 specialists in AI-convergence, arts, and music education. The content validity ratios (CVR) were .82 for the instructional model and .95 for the eight-lesson program, exceeding the recommended threshold; the program was subsequently revised and finalized based on experts’ qualitative feedback. In addition, the study presents macroand micro-level instructional models, lesson-by-lesson teaching plans, and practical implementation guidelines feasible for school music classrooms. The program is significant in enabling student-led musical theatre creation and interdisciplinary convergence centered on music.