(Published on Oct 22, 2014) The Princeton Girlchoir's annual Children Making a Difference concert teaches young girls about service and community while raising funds for a local nonprofit. The Princeton choir is joined by the newly- formed Philadelphia Girls Choir. "Singing has the mission of creating great citizens," says Philadelphia Girls Choir director Nathan Wadley. Melissa Malvar-Keylock, Associate Director of the Princeton Girlchoir, explains, “Learning perseverance, learning discipline, all these things are above and beyond just singing beautiful music.”