In addition to being manipulated by what's seen in the camera and your movements, different portions of a song will be played based on the time of day. So what you mix at 4pm will be different than what you mix at 10am. Another intriguing aspect is the use of heartbeats. But to get that working, you'll need an Apple Watch.

The app works with iPhone 5S and later. But while the clips for the remixes are currently in the app, the original versions of the new songs are still throwing an "available soon" window when selected.