If the theme of Bonnaroo 2017 became a Festival trying to balance its own storied legacy with the demands of the modern American festival circuit, then Sunday closed the festival out with a powerful portrait of the Farm's future. Although Bonnaroo made its name by booking arena rock megastars, beloved jam bands, and bluegrass icons, the demographic that cares about those acts is aging out of the festival lifestyle and a new generation of music loving young people are taking their place. If Bonn