If you’re driving faster than the speed limit, the app makes your music slow down. If when you’re exceeding the speed limit by more than 10 km per hour, the music stops completely.
Over in Japan’s Nagano Prefecture, they’ve take to the streets and placed a groove in the road, resulting in “Melody Road”:
Another version of a soundtrack for the speed limit, created by the folks over at Dentsu London. They say the Japanese road has been successful in reducing the number of accidents and increasing the number of tourists.