1. Andrew, S.P., Ann, C.K.: Developing singing in third-grade music classrooms: the effect of a concurrent-feedback computer game on pitch-matching skills. Update: Appl. Res. Music Educ. 34(1), 42–49 (2015). https://doi.org/10.1177/8755123314548047
2. Callaghan, J., Thorpe W., van Doorn, J.: The science of singing and seeing. In: Parncutt, R., Kessler, A., Zimmer, F. (eds.) Proceedings of the Conference on Interdisciplinary Musicology (CIM04), Graz, Austria, pp. 15–18 (2004)
3. Cheng, M., She, H., Annetta, L.: Game immersion experience: its hierarchical structure and impact on game-based science learning. J. Comput. Assist. Learn. 31, 232–253 (2015). https://doi.org/10.1111/jcal.12066
4. Lecture Notes in Computer Science;S-M Chung,2014
5. David, T.: A robust algorithm for pitch tracking (RAPT). In: Klejin, W.B., Palatal, K.K. (eds.) Speech Coding and Synthesis, pp. 497–518. Elsevier Science (1995). https://www.ee.columbia.edu/~dpwe/papers/Talkin95-rapt.pdf