The fine grain, which is called "grass splitting force" in Korean and commonly known as "pipe" in the folk, is popular in Yanbian Korean Autonomous Prefecture of Jilin Province and areas inhabited by Koreans.

When playing the fine rascal, the pipe body is placed upright, the little finger, ring finger, middle finger, and index finger of the right hand press one to four holes respectively; Flat blow or super blow.

The fine horns are high music instruments, and each can only play one key. The tube sound is d1, and the first to eighth holes are opened in sequence, and the natural sounds emitted are as follows: f1, g1, a1, bb1, c2, d2, bf2, g2, and a 2, b2 can be produced by controlling the lips and tongue two tones. Although you can use the depth of the whistle, control the breath or press the number of holes to change the tone, but generally you need to change the instrument to play. The sound is crisp and high-pitched.

Playing techniques include vibrato, portamento, ornamentation, and accents. Can be used for solo, instrumental ensemble or to accompany folk song and dance. Best at solo, it is a color instrument in the band ensemble. Later, through the reform of Wu Zhongfu, a master of the reformation of Chinese national wind music production, the pipe body was made of ebony with a sound similar to the bamboo pipe, and a plus key overtone hole was opened in the upper right corner of the original sixth hole, so that the sound range was expanded from d1 to g3, up to two half an octave. After his reformation, the multi-key fine scorpion has a wider range and can be transposed.

In the Korean music, Xiuqi occupies an important position. He is best at playing Korean-style music with a strong local flavor. The solo pieces created include "Field Ditty", "Joy" and so on.