The article analyzes the success of interactive methods for evaluating digital tools and digital games with a focus on usability. To do so, it maps out the game's heuristic evaluations of usability, called playability. In this context, a bibliographic review was performed, seeking to encompass the most prominent authors as well as the articles that help in understanding the best way to apply software evaluation and the best timing for such evaluation. Heuristic evaluation of usability is a useful tool for developers to improve interactive tools. Many developers have adopted interactive game-based learning because of its characteristics, and have been able to motivate mobile learning systems. After the consolidation of these papers and heuristics, three digital games geared toward music teaching were selected. The results show that it is possible to identify and analyze problems of playability, allowing designers to make corrections that can improve user experience, such as the possibility of contributing to the learning process. The qualitative study was beneficial, as it helped to understand usability problems that occur in interactive tools. [For full proceedings, see ED621941.]