Siregar, A.R.D.P. and Khair, R. 2026. Mood-Based Song Recommendation System Using TF-IDF and Cosine Similarity. Journal of Scientific Research, Education, and Technology (JSRET). 5, 4 (Oct. 2026), 2771–2779. DOI:https://doi.org/10.58526/jsret.v5i4.1272.