Paul Metsa has many guitars, wears many hats. He cut his musical teeth on Minneapolis' West Bank in the early '80s, and has taken his passion for music and activism on the road--a place he calls the Blue Guitar Highway, and the title of his memoir published by the University of Minnesota Press in 2012. This year he began hosting his own weekly radio show, the Wall of Power Radio Hour, on AM950. In this KFAI audio documentary, producer Britt Aamodt talks to Metsa about music, his influences, the Iron Range, social activism and, of course, guitars. For more information, visit blueguitarhighway.com.