편경 編磬 Pyeongyeong LITHOPHON - Korea Music

The pyeongyeong is constructed with 2 rows of 8 pumice slabs giving the instrument precisely a 16-tone range. The percussionist strikes the pumice slabs with a mallet to produce the sound. Along with the pyeonjong, this instrument was brought from China during the Koryo Dynasty and during the reign of King Sejong (1418-1450) when pumice was discovered in Kyonggi Province, the instrument was constructed in Korea. One aspect of the pumice slabs is that they are not sensitive to changes in temperature or humidity and are thus reliable in establishing the relative pithes of an nsemble piece. The pyeongyeong is used in a number of orchestral works, normally together with the pyeongjong. (Source angelfire)

The Pyeongyeong consists of 16 chimes and is played by stricking them with an ox horn mallet. The thicker the chimes are, the higher the sound is. This was imported from China, but since the material stone pumice was discovered in Korea, it was also manufactured in the country. (Source webarchive)