It looks as though someone has been reading my mind (or more honestly, all my good ideas are already taken). The REGEN Juice Bar in Toronto are putting on a gig called Regenerative Brainwave Music: ElectroBrainFunk. blurb follows:

What happens when a building reads your thoughts? What if music responded to your mind? REGEN3 will present the latest developments in EEG brainwave music research, by presenting an ensemble comprised of Toronto jazz musicians playing music which is driven and altered by the brainwaves of the audience. Audience members can become part of an advanced mass EEG system which uses audience brainwaves to control both the music and lighting environment: a truly ‘smart’ building. Join us and see what happens when the mood of the environment is ‘regenerated’ by the collective consciousness of the attendees.”

The technologically adept might like to take look at some detailed explanations of just how this is all done, and the scientifically challenged can view a video about the last such event that aired on Discovery Channel .