The Fun Theory ~ Piano Stairs?

Good News of the Day:
If stairs played musical notes when you walked on them, would you be more likely to take them? Volkswagen has launched a popular new campaign called "The Fun Theory" which is "dedicated to the thought that something as simple as fun is the easiest way to change people's behavior for the better." It turns out that 66% more commuters opted for stairs over the escalators! Take a look at this utterly clever (and fun!) idea.