The focused, penetrating sound of the koto, which is similar to the tone of japanese vocal music, comes from a. tension of the stringsc. relaxation of strings d. sound wave overlapping d. none of the above

a. Tension of the strings

Explanation:

The koto is a pluckedstring instrument. In these instruments, the sound is obtained causing the vibration in several strings. Therefore, its sound depends on the thickness, extension and tension of the strings. The lower the tension the deeper the sound will be.

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