def METHOD_NAME(self):
    """Enable music playback for this scene. Nothing happens if music was 
    already playing.
    Note that if you call this method on an inactive scene, the music will
    start playing back only if/when the scene gets activated.
    """
    if self.music is not None and not self.music_playing:
        self.music_playing = True
        if self.is_running:
            cocos.audio.music.control.play()