How long have you not heard the sound of nature? Kids living in the city are surrounded by the sound of cars honking on street and the noise of people coming and going…..“Big Whale” would like to give kids a chance to discover the origin of sound. A Jian, a natural music performer and handmade instrument craftsman from Dali, Yunnan, is invited to bring kids a music tour to the nature. He used waste gas canisters, gourd, bamboo, walnut, among other materials to make instruments. The uniquely handmade instruments could simulate bird tweets, raining, stream flowing and other natural sound. It is a concert let children to feel the purity and beauty of natural music.