Musical Stairs (Volkswagen)

Volkswagen is getting pretty creative lately with their ads.  Earlier they did a commercial with the deepest trashcan in the world that was really just a rigged can that played music every time people threw away their junk.  Now, in an attempt to get more people to use the stairs in a busy area, they rigged the stairs so they'd play piano music.  It's pretty interesting, check it out.

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