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How to distribute the fingers of Ya Qin with seven strings?

The scales are arranged from left to right as follows: D, E, G, A, B, D and E. Fingers are assigned and pressed on them respectively.

Lai Ya Qin has a very gentle tone and quiet quality. In Waldorf education, Le Ya Qin is a classic spiritual instrument that nourishes children's senses. Its sound is very strong at first, and then immediately weakens into a soft echo, and inadvertently changes from external listening to internal listening.