Cerebral palsy (CP) is a condition often linked to physical limitations, and there is a lack of programs to help children with CP learn music. This study investigates the use of eye-tracking devices to create an educational musical game for allowing children to learn music while playing. The target audience includes primary school children with motor difficulties and their music professionals. The project follows a Design-Based Research method, collecting data through usability tests, interviews, and observations. Tests involved 35 participants, including music teachers, students, and two design students who provided feedback. The game was split into two versions: a playful one and another resembling a simulator. Although only one participant was a child with CP, analysis of comments and gameplay performance suggests these devices offer a viable, accessible way to interact with applications.