I once saw a very interesting piece from CBS News (embedded above) that tells of a project that one very optimistic and enterprising soul named Colette Hiller decided to take on: scattering 30 pianos in random public places around London. Their puropse? To inspire impromptu public sing-alongs among strangers. The goal? To foster goodwill and social bonding among the people in the city, who may need a pick-me-up because of the recession and other real-world stressors.

It...