I just discovered this beautiful project – it's no longer installed, as it was on display July 28, 2008 through August 22, 2008. Toyo Ito and Associates Architects and Takram Design Engineering created this interactive exhibit with 280 glass chimes. Here's some info on the project:
On a grid of equilateral triangles, we hung a total of 280 glass wind chimes from the ceiling at varying heights to represent the undulation of a wave. When you walk underneath the wind chime, not only does it ring, but its LED also alights like a firefly. The wind chimes nearer to the ceiling ring in higher tones, and those hung lower in lower tones together offering 10 degrees of tonal expression. And it feels as though you are walking inside a large interactive instrument. Additionally, the wind chimes are networked together, so that the sound and light spreads to adjacent wind chimes like ripples in the water. This network system was based on the idea of behavior we observe among certain animals in nature that form groups.
No matter what I say about this, nothing is going to top the videos. Check them out.