Sound Track is a toy. Red dot on the track is like music note. Train plays those notes. I complain for two things. Curves denies to keep musical tempos. Other one is there is no rest track. There is luck of musical and figure sense. Let children to notice it 🙂
“If Cities were smarter, then life in cities would be better.” The message is brought you by IBM & Ogilvy France. They add functions to advertises with simple curves brilliantly.