currentFrame: 1, currentScene: [Scene 'Scene 1']
currentFrame: 2, currentScene: [Scene 'Scene 1'] S1 nextScene()
currentFrame: 1, currentScene: [Scene 'Scene 2'] S2 nextScene()
currentFrame: 2, currentScene: [Scene 'Scene 2']
currentFrame: 5, currentScene: [Scene 'Scene 2'] S2 prevScene()
currentFrame: 1, currentScene: [Scene 'Scene 1']
currentFrame: 2, currentScene: [Scene 'Scene 1'] S1 stop()
