In this research, I aimed to evaluate the effectiveness of using video recordings in the process of formative assessment of taksims performed within the maqams covered in a Turkish music theory course. Taksim entails a performance aligned with the melodic movement features of a given maqam, adhering to its rules, yet allowing for improvised expression without a rhythmic structure. Maqam can be defined as the creation of musical phrases with a number of special rules by using certain sounds. Taksim studies are carried out in Turkish Music Conservatories, generally in the third and fourth grades, for the practice of the maqams taught in Turkish music theory courses. In this study, participating students recorded taksims in specific maqams. I, also as the instructor, reviewed the taksims performed in the video recordings and engaged in discussions with the students to clarify any ambiguous aspects. In my study, I employed observation, retrospective verbal protocol analysis, and interviews. I analyzed data using the content analysis approach on ATLAS.ti software. From my investigation, I deduced that analyzing videos during the formative assessment stage proved beneficial in identifying errors and enhancing skills such as error recognition, intonation, musicality, melody creation, motivation, and confidence.