Classical music as crime stopper

Now here's a provocative piece on classical music as crime stopper. Appears that playing classical music in public spaces reduces crime and drives out loitering thugs. If this is the wave of the future, I for one have no objections - Vivaldi and Mozart would be welcome in the stations of the Broad Street line, and I prefer my public spaces thug-free. On the other hand, it raises some fascinating issues about the meta-cultural significance of classical music these days, and the article quotes a variety of spokemen on that subject.