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Ancient ulla.

The ulla (hangul: 운라; hanja: or ) is a traditional Korean percussion instrument comprising a set of ten small tuned gongs in a wooden frame. [1] The gongs are struck with a beater.

The ulla is derived from the Chinese yunluo.

References

  1. ^ Yi, Hye-gu (1982). Korean Musical Instruments. National Classical Music Institute of Korea. p. 10.