Characters were cut on the tread of the Japanese wooden shoes (it is also used in old china and some southern town in china now). The characters were some words of sound, which are 12 different sound in Chinese traditional music system. The visitor can walk in the "Nine Square" with these of shoes and print the tread on the paper. The "9 Square construction" is a symbol of the universe in China. During the show, the paper getting filled more and more ink of prints.

The title of this show is "Sound of the Sound". In fact , the 9 square with shoes walking means the earth, the earth is square and the sky is a circle, so the bell is the sound of the sky, and the bike is human action between sky and earth, all the tree works is "Tian, Di, Ren"(sky, earth and human being .