As part of the nation’s cultural heritage, traditional Indonesian music has grown and developed throughout almost all regions of the archipelago. It has been passed down from generation to generation and continues to be practiced today. Each traditional musical instrument is an important element of Indonesian culture that reflects the identity, philosophical values, and history of a particular region. Basically, a musical instrument is an instrument specifically designed or modified to produce musical sounds. However, public interest in learning about and recognizing traditional musical instruments has gradually declined, resulting in a lack of interest in studying them. This research aims to develop an educational medium that utilizes Augmented Reality technology to introduce traditional Indonesian musical instruments to students in an interactive way. The research method used is Research and Development (R&D) with the ADDIE model, which consists of the stages of Analysis, Design, Development, Implementation, and Evaluation. This research produced a digital book integrated with Augmented Reality technology, enabling the presentation of three-dimensional (3D) objects and audio of traditional musical instruments through marker scanning. The results of media expert validation showed a percentage of 89%, categorized as very feasible, while the testing results indicated that the learning media was feasible for use, with a satisfaction level of 63%. Based on these results, the interactive learning media is considered feasible to support the introduction of traditional Indonesian musical instruments. It is expected that students will gain a better understanding of and appreciation for the diversity of local culture, particularly traditional musical instruments.