CHUK: Korean musical instrument
https://worldhitz4u.blogspot.com/2014/10/chuk-korean-musical-instrument.html
The chuk is a traditional musical instrument that is from
Korea. The musical instrument is used in the Confucian and Royal Ancestral
Shrine ceremonies to hint that starting of a ritual music performance.
The
musical instrument is made up of a wooden box, performed by striking the bottom
of the instrument with a mallet to mark the section or the beats. The musical
instrument is derived from the Chinese ‘zhu’ and was trade in to the Korean
from the Chinese world during the Goryeo dynasty.