If you use a gourd as a musical instrument, you'd better make a gourd silk. The tools you need to prepare include a small saw, knife, hammer, sandpaper, and glue. The material is a piece of bamboo with a diameter of about 20 mm and a length of about 50 cm. A piece of reed made of copper. Then, according to the appearance of the finished cucurbit silk, stick the reed to one end of the bamboo with the holes. Then insert the bamboo into the big end of the gourd with the hole. Just put a thin tube on the little head and that's it. For specific methods, please refer to the introduction of the Agricultural Broadcasting World program of CCTV 7, which can be searched on Baidu