The tungso is a Korean notched, end-blown vertical bamboo flute used in Korean traditional music. It is similar to the danso, but longer and larger. The hanja tong (洞) was used to describe the shape of the instrument that resembles a long cave.
Use
Like the daegeum, there is a special hole called cheonggong covered with a thin membrane made of reed between the breathing mouth and the hole, which produces a vibrating sound. The tungso was also played as court music, but is rarely played now. ==See also==