Instrument making is a subset of music and handicrafts. According to research, historians believe that the first music produced by humans was sound. People used to beat their bodies and feet to create music. After inventing various tools, they were able to produce early percussion instruments from tree trunks and stumps. And later they produced wind instruments. The oldest wind instrument found is the flute of the divij bib, which is a piece of perforated bone dating back to the Neanderthal period. The ancient origins of this art and craft can be found in the cultures of China and India. The roots of musical instruments can be seen in historical works and designs, including the Arjan Cup, which is a picture of a group of musicians and dates back to the first millennium BC. Instrument making in Iran is also very old. For example, the instruments of the clarinet, harp, lute, tambourine, tambourine, harp, and organ are 3,000 years old. Instruments are divided into three categories: percussion, wind, and string instruments, and are also classified into three groups: wooden, metal, and clay. Other materials used in making instruments to a limited extent include animal skin such as lamb, animal horns such as rams, animal bones such as ostriches, horse manes, seashells, and more.