Japan's natural environment contains a lot of moisture. Soft, moist plants and trees, and soil covered with fallen leaves and other substances make it difficult for sound to echo throughout the environment. In a space where sound is less likely to echo, high pitched sounds and fine overtones can be heard better. This suggests that we Japanese have lived in spaces where a wide variety of overtones exist.
Looking at Japanese people's traditional living environment, we are surrounded by sound-absorbing materials such as rush-woven tatami mats, paper shoji screens, and cloth fusuma sliding doors. It is as if the natural environment outside has been placed directly inside the house. It is thought that this is how the Japanese became more sensitive to high-pitched sounds and subtle overtones.
In the Western world, on the other hand, houses were mainly made of hard stone or brick, and streets were built with stones. When covered with stone, sound is more likely to echo. In a space where sound echoes easily, sound is constantly reflected, and as it reflects, the higher harmonics are absorbed, while the lower harmonics are amplified by parallel surfaces (echoes repeated between parallel walls) that form standing waves. This is also related to the development of base tone-based music in the West.
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Akikazu Nakamura, Overtones¡§Sound¡¦Language¡¦Note of Bodily Culture, Shunjusha, November 1, 2010,
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