Mendrofa, A.A. and Batubara, J. 2023. IMPROVISED THE PROGRESSION OF THE SONG BALONKU BY A.T MAHMUD: JUDGING FROM MODERN PIANO PLAYING TECHNIQUES. Advances In Social Humanities Research. 1, 6 (May 2023), 833–344. DOI:https://doi.org/10.46799/adv.v1i6.99.