Several industrial art groups are collaborating on a project called Syzygryd. It's basically a 2.5-ton metal instrument with a 6m fire tornado in the centre. Crazy? Yes. But they've got a plan and most of the funds already.
As insane as this whole project sounds, I somehow think that these folks might actually pull it off with the backing of the Burning Man Foundation, Kickstarter, and what sounds like a talented group of people. My only qualm is that I'd be terrified to step anywhere near this thing:
Syzygryd is an interactive metal sculpture measuring 60 feet in diameter and 13 feet tall at its highest point. It consists of three giant spiraling metal arms that join into a tornado of cubes in the centre of the space. At the outer edges of the sculpture are three touchscreen grid sequencers (think of a giant 4 foot wide Tenori-on) which allow people to visually compose music together. The touchscreens are also connected to DMX controllers which sequence 1.5 kilowatts of LEDs and an array of flame effects, including a 20 foot fire tornado in the centre. In short, the music composed by three strangers will be translated into fire, light, and sound.