Djahwasi, H.R. et al. 2024. A Critical Review: The Implementation of Spectrogram and Sonic Visualizer on The Performance Review of Classical Music. Virtuoso: Jurnal Pengkajian dan Penciptaan Musik. 7, 1 (Jun. 2024), 31–46. DOI:https://doi.org/10.26740/vt.v7n1.p31-46.