Politis, Dionysios, George Piskas, Miltiadis Tsaligopoulos, and George Kyriafinis. “variPianoâ„¢: Visualizing Musical Diversity With a Differential Tuning Mobile Interface”. International Journal of Interactive Mobile Technologies (iJIM) 9, no. 3 (July 31, 2015): pp. 58–63. Accessed November 23, 2024. https://online-journals.org/index.php/i-jim/article/view/4472.