Trakulhun, Wiboon, Raweewat Thaicharoen, Parichat Euprasert, and Khaekhai Tanasansopin. “The Difference Between Change of Key and Modulation”. Rangsit Music Journal 21, no. 1 (January 28, 2026): A0202 (21 pages). accessed September 11, 2026. https://so06.tci-thaijo.org/index.php/rmj/article/view/289755.