It's different. The voice of cucurbit silk in the key C is crisp, while that in the key B is depressing, which makes it feel immersive. 1: Put it down three times, two times and four times. Put your left hand on the top and your right hand on the bottom. The thumb of the left hand presses the hole behind the cucurbit silk, and the index finger, middle finger and ring finger of the left hand press the top three holes in front, but the little finger does not. Press the index finger, middle finger and ring finger of your right hand on the three holes below, and be sure to press each hole tightly, otherwise it may not blow out (all fingers pressing holes should press holes with their fingertips so as to press them tightly).

Hold down all the holes and blow your tongue at the mouth of cucurbit silk, that is, bass 5,

The ring finger of the right hand (that is, the lower finger) is lifted and opened, and it is a bass 6.

On the basis of bass 6, open the middle finger of the right hand, which is bass 7.

All three fingers of the right hand are open and lifted, which is alto 1.

The ring fingers of all right hands and left hands are open at the same time. Yes, alto 2.