Should you exceed the posted limit, the music will quite literally slow down. Push that gas pedal even harder so that you are going more than 10 miles per hour over, and the tunes will go mute.

The app will then automatically select songs with a reasonably close rhythm from your library, and then adjust their tempo to play at that cadence. Free Run mode is essentially the opposite of ...

Highnote allows you to slow down or speed up the tempo of songs in your iOS music library, without affecting the pitch or key. It also allows you to change the key without affecting the tempo. Any ...