[1] The instrument was referred to historically as saeng (생; 笙) or u (우) during the Goryeo period.
[1][2] Sheng were continually brought to Korea, with the Goryeo court receiving it from the Song dynasty in 1116.
It continued to be played into the Japanese colonial period, with artists eventually joining the National Gugak Center after the establishment of South Korea.
Excluding the ui-gwan, the 16 coffins produced 12-yul and 4 auditory sounds, but since they began to be used for hyangak, they have a wider range.
It is used primarily in chamber music, usually in combination with instruments such as the danso (vertical flute) and yanggeum (hammered dulcimer).