Adapt music when you are running The run is always hard to me, because it's boring. And we listen the music when we are running. But often it doesn't helps us, and vise versa it interferes. You need to adjust your temp of run under the temp of music. And you have to run faster or slowly then you want. The application TrailMix helps to decide this problem. It adjusts your playlist under the speed of your run in real time. Also there is Spring. It's service and application for iPhone who has a large gallery of music sort of temp. The music player of Spring adapted for any type of the training. This music player is comfortable in use during the traning because it has large elements. All of these applications you can find in AppStore. Will you use it? ;)