zurich chamber orchestra has some amazing advertising - thanks for Michael and David for passing it along! Although, I am not sure what an orchestra would play for babies...Mozart?...or what musicians would really want to play for a hall of squealing, squirming, and not-very-attentive babies and parents... But the poster sure is cute and clever.
Having already posted about their advertising here, I had to do a search for what other interesting concepts they had come up with. Looks like they excel at non-traditional orchestra advertising - or their agency Euro RSCG World does.