Can jazz revitalize an urban neighborhood? In the northwest Philadelphia neighborhood of West Oak Lane it certainly has played a large part. For the seventh year, the neighborhood residents, along with the Ogontz Avenue Revitalization Corporation (OARC) and the office of State Representative Dwight Evans, have joined together, closing the main avenue for a weekend and hosting local and internationally known jazz groups. This year's lineup included Preservation Hall, Esperanza Spalding, David Sanborn, and Al Jarreau, among others, along with a wide array of arts and street food. Over a half-million people came to the area for the three-day festival to hear the free concerts and enjoy the community spirit it has created at this yearly summer event. Each year, positive changes can be seen in the neighborhood with new businesses and streetscapes enhancing this once declining area. The community spirit around the festival is palpable with ultra friendly jazz and arts lovers welcoming all who come to enjoy the music and the neighborhood that host it...