adidas has partnered with spotify to create an app that tracks your speed and matches music to suit .
called adidas go , the songs are additionally selected based on the runner 's musical interests and listening history and these selections become more relevant the app is used .
once installed the app uses the phone 's accelerometer to track the user 's stride , it then searches for songs in the spotify library with matching beats per minute .
` for many people having playing while you run can provide the perfect boost of energy to enhance your running experience .