According to the rules of music playing, the piper uses chest-abdominal breathing, the flute head is placed in the position of the lips, and controls the state of the muscles around the lips and face. 2. Mouth: O-shaped mouth, when smiling, the mouth is in a "sad" shape; the lower lip wraps the teeth in, the cheeks are close to the gums, and the upper teeth are on the flute head. 3. Position of flute head: The number of flute head varies with the size of each mouth, the thickness of lips, the length and regularity of teeth, and the type of seedling. The principle and purpose of the number of flute heads is to find the best trigger point and make a good sound. First, there is less test blowing at the front end of the flute head, and then more test blowing at the back end of the flute head. Then, there is less test blowing at the front end of the flute head. Through this method, the saxophone can be found to have both full and round woodwind instruments and bright and beautiful metal sounds by comparing it with its own timbre. The best vibration point is found, which can fix the position of the flute head. 4. Several common problems in the mouthform of playing, their causes and remedies: jaw muscle upward nursery, top, pout. The main reason is that the lower lip quadratus muscle does not exert its force downward and outward correctly, and sticks to the lower teeth and gums. It is necessary to understand the correct method of natural falling and flat chin, just like playing flute, blowing arrows and smiling, so as to correct its defects. Summing up and down the outward bow whirlpool. The main reason is that the orbicularis oris muscle and the corners of the mouth are out of control or unable to control. The orbicularis oris muscle and buzz angle around the upper and lower extensions exert force naturally and effectively, and the upper and lower lips are naturally attached to the upper and lower teeth. It is possible to control the closure of the two corners of the mouth, thus avoiding its defects. His cheeks bulged. The main reason is that because the laughing muscles on both sides of the figurative horn are uncontrolled, Qi exists in both cheeks, so both cheeks bulge up. The laughing muscles should be effectively controlled so that the two cheeks are attached to the upper and lower teeth'gums and'the two cheeks lose the condition of gas storage, so as to correct the problem of their drums and cheeks. If there are too many or too few flutes, the position of flute head is left or right, the neck is tightened, the neck is blushed, the eyebrows and blinks are unnatural defects, they should be corrected by looking at the mirror frequently in practice. Inhalation and exhalation are the daily use of chest breathing, which is a physiological exercise. The breathing in wind music is a combination of thoracic and abdominal breathing. This is a crucial step in wind playing. The control of pronunciation, intonation, pitch, timbre and intensity, the performance of stress and weakness in rhythm, the standardized and artistic treatment of music, the division of length of phrases and so on, all have a direct relationship with breathing. Therefore, we should pay attention to the correct breathing method, and earnest practice can improve the playing skills. At the same time, incorrect breathing can easily cause lung fatigue and damage. (1) Mouth type: The correct or not of mouth type can affect the pronunciation, the incorrect mouth type will bite the lower lip, cause infection, and even cause dental deformities, the initial study should bear in mind the attention of mouth type.