@Override
    public void setLoopMode(LoopMode loopMode) {
        super.setLoopMode(loopMode);

        if (loopMode != LoopMode.DontLoop) {
            audioNode.setLooping(true);
        } else {
            audioNode.setLooping(false);
        }
    }
Returns the underlying audio node of this sound track
@return the pre-existing instance
jme3-core/src/main/java/com/jme3/cinematic/events/SoundEvent.java