Air Music enables you to create sounds by moving your phone through the air. Just shake the phone to produce sounds. You can see the sound engine state by looking at the diagram. When sounds are produced the diagram cursor becomes colorful. The color depends on the way the phone was shaken. The faster you move the phone the more sharp the sounds will be. When you stop shaking the phone the sound intensity will decrease rapidly. You can adjust the volume by using the volume slider inside the main menu.