Beam Music is a sound and light installation:

“When we’re not there, this attic is playing a new genre of industrial symphony,” says audiovisual designer Bruno Mathez.

What you’re seeing is a dark attic space in which the frames of wood and the pipes are being lit by a very precise ray of light, giving illusion that the light comes from inside the object. Each lit object has its own individual sound.

This was made in the attic of The Pavilion in Bexhyl on Sea, England.

via Califaudio