Stop me if this sounds familiar: You've set up the perfect video shoot, you've got the best audio track playing as background, you fire up the Camera app on your iPhone, you start the recording...and then the music dies. Once again, you've forgotten that the iPhone does not allow for audio playback while shooting video with the Camera app.
It does make some sense in some situations — presumably when you want the video to record environmental sounds — but in others, you just want to shoot...