The University of Florida was awarded a $391,717 project grant by the National Science Foundation Division of Research on Learning in Formal and Informal Settings under the federal STEM Education program (CFDA 47.076). The grant will support the development of a 10-hour curriculum and browser-based music programming platform called M-Flow to engage elementary school students in computer science. Key deliverables include teacher professional development, career awareness videos featuring young underrepresented professionals, and iterative design research to study how the program influences student and teacher interest in computing. The research aims to explore the utility of flow-based programming for engaging novice learners in computer science topics related to music. Data collection will assess classroom use and perceptions. If successfully implemented at scale via web distribution, the project aims to potentially engage thousands of young students in computer science activities aligned with the goals of the NSF program to broaden STEM participation. The period of performance is from June 15, 2023 through May 31, 2027.