This special edition of FRONTLINE/WORLD offers a look at some remarkable individuals finding ways to do good around the world and also tells an uplifting story of the power of music to transform lives.

This special edition of FRONTLINE/WORLD offers a look at some remarkable individuals finding ways to do good around the world and also tells an uplifting story of the power of music to transform lives. In Uganda, reporter Clark Boyd finds out how a San Francisco-based non-profit called Kiva is revolutionizing the world of micro-credit, and Macarena Hernandez travels to the Mexican state of Chihuahua to meet a man who's rediscovered an ancient method of pottery-making that's bringing fame and prosperity to the rural village of Mata Ortiz. In Poland, the Chopin International Piano Competition offers a window onto the world of young virtuosos who come to learn that there's much more to music than just playing the notes. Finally, in South Africa, a remarkable invention - a schoolyard merry-go-round that drives a water pump - that's offering a great leap forward for poor, rural communities in need of clean water.