The saenghwang is a Korean wind instrument. It is a free reed mouth organ derived from (and quite like) the Chinese sheng, even if the setting is different. It is built from 17 bamboo tubes, each with a free metal comb, mounted vertically in a box spring. Traditionally the box spring of saenghwang was made on a dried gourd, but nowadays it is more commonly made of metal or wood. Unlike other traditional Korean instruments, it is not well known today, even in Korea, and very few musicians are able to play. It is mainly used in chamber music, most often associated with such instruments as the danso (vertical flute) and yanggeum (dulcimer). The instrument was referred to the story as Saeng.