oh, it's more than one beam and you can walk through them
Spectra will appear from darkness to dawn over the next seven days, and people are encouraged to visit the site and interact with the project by walking though the grid of spotlights, arranged in seven rows of seven. Ikeda has also created an ambient soundtrack to enhance the experience: waves of subsonic sound punctuated by beeps and hisses, emanating from four sets of speakers pointing inwards towards the light. It's as if an alien craft is beaming down to a soundtrack by
Brian Eno.