Objects in the space can make their own voices. For example, when you pick up a book and put it next to your ear, you can hear a seed germinating in the soil and growing into a sapling. You can hear a small tree grow into a great tree after the rain. You can hear the wind in the leaves. Suddenly a truck came into the quiet forest one day, cut down the tree, and sent it to the factory. Then you can hear the roar of the paper machine in the paper mill, the sound of the printing house cutting paper and printing... Eventually, you'll hear the reader sitting in a cafe reading the book. All the audible objects in the room form an ensemble from different positions in the space. And the sound will change depending on the location of the audience. All objects begin by playing the sounds they make in nature and end with the sounds in human society. It will form a symphony of object stories.