The saenghwang is a Korean win instrument. It is a free reed mouth organ derived from (and quite similar to) the Chinese sheng, though its tuning is different. It is constructed from 17 bamboo pipes, each with a metal free reed, mounted in a metal windchest (the windchest was formerly made from a dried gourd). In contrast to other Korean traditional instruments, it is little used today; few specimens exist, and very few musicians are able to play it. Its use is restricted primarily to chamber music contexts, usually in combination instruments such as the danso (vertical flute) and yanggeum (hammered dulcimer).