2009年,在法国巴黎的蓬皮杜艺术中心举办过一个展览,展览中有个特别的楼梯(题图),引起参观者极大的兴趣,人们争先恐后去走这奇妙的楼梯。当人们从楼梯向展览厅走去时,脚步会激起音乐声(图1),这个装置让人们关注自己的脚步,并且有机会自己演奏不同 In 2009, an exhibition was held at the Pompidou Center in Paris, France. There was a special staircase (pictorial) in the exhibition, arousing great interest among the visitors. People scrambled to go this wonderful staircase. When people go from the stairs to the exhibition hall, the footsteps stir up music (Figure 1), a device that draws people's attention to their own pace and has the opportunity to play for themselves