1. Seinfeld, S., Figueroa, H., OrtizGil, J., SanchezVives, M. V: Effects of music learning and piano practice on cognitive function, mood and quality of life in older adults. Frontiers in Psychology. 4, 810 (2013). https://doi.org/10.3389/fpsyg.2013.00810.
2. American Heritage Dictionary Entry: Music, https://ahdictionary.com/word/search.html?q=Music, last accessed 2021/07/06.
3. Olson, H.: Music, physics and engineering. Dover Publications, New York (1967).
4. Russo, F.A.: Perceptual considerations in designing hearing aids for music. Hearing Review. 74–78 (2006).
5. Wolfe, J.: Speech and music, acoustics and coding, and what music might be “for.” Proceedings of the 7th International Conference on Music Perception and Recognition, 2002. 10–13 (2002).