A hypothetical: what if you actually play out the music? Suppose you offer a car app which does something useful. In addition, when the car is not in use, it qu

A hypothetical: what if you actually play out the music? Suppose you offer a car app which does something useful. In addition, when the car is not in use, it quietly plays background music inside the car. The music is audible if someone is inside the car, but is not loud enough to be audible outside the car. Now use this to play content for which you get royalties.