Play Background Sounds While You Show A Display Of LightsPlay background sounds while running a light animationUsesHere are a few typical ways this is used. Villages, factories, and buildings create noise of one sort or another. And then open areas, playgrounds, and roads do the same. A Christmas village display would have carols playing in the background. All could be accompanied by some form of light display. This application is applied on two levels. On the first the background starts as soon as the