This paper presents the results of a pre-experimental design. The study was carried out with a single-group posttest model. In this study, the Turkish Folk Music unit was chosen for investigation as part of Phenomenon Based Learning with 10th grade high school students. In order to carry out the Phenomenon Based Learning process in an effective way, the teacher is meant to be well-prepared in different aspects. Therefore, during the research, the music teacher tried different introductory and follow-up activities. Following this, the opinions of 84 high school students were considered, concerning the activities. Results revealed that the introductory activities have the utmost importance in Phenomenon Based Learning. Although this study was carried out within time constraints, it was evident that these activities had a great impact on the students and the teacher. The students' discoveries and inferences about both Turkish Folk Music and themselves for the future emerged as promising.