WIRED.com reports on Volkswagen’s Play the Road app that tailors music to your driving.

To begin with, VW’s boffins enlisted the help of the legendary sonic duo Underworld to help create the sounds, synths, and rhythms to create an ever-evolving soundtrack. Then they used an iPhone’s accelerometer and gyroscope to track the GTI’s maneuvers, followed by cross-referencing it with onboard video and GPS of exactly what the car was doing on the track. After that, they tethered the phone to the car’s on-board computer to get speed and engine revs, then ported it all to the Pure Data musical programming language that creates live sound.