The cucurbit flute fan refers to the finger on the sound that is quickly fanned up and down to make the sound emit a special timbre such as microwave vibration. This is a special performance method inherent in the folk of the Dai people. It can be used in "Deep Bamboo Forest", and the part that replaces the tremolo works very well! I remember listening to "Lu Xiaoqing" once, and it seems that this technique was used to play it. You are welcome to add it!

Fan finger sound refers to the finger on the sound that is quickly fanned up and down, so that the sound emits a special timbre such as microwave vibration. This is a special performance method inherent in the folk of the Dai people. When playing the fan finger tone, you can also use your fingers to open and close up and down quickly and evenly at about one-fifth of the sound hole next to the sound hole to form a sound wave, and you will also receive a good performance! Recommended for everyone! Strictly speaking, the fan finger tone is not a tremolo. Continuous opening and closing to form a sound wave. Finger tremolo is also called virtual finger tremolo or hole punching. As the name suggests, it is not fanning the original sound hole, but in the lower two holes of the original sound, and fanning smoothly. When playing "5", use your left ring finger to fan the "2" sound hole, and when you play "6", use your left middle finger to fan the "3" sound hole. But the effects they produce are somewhat similar.