Pete Seeger was an environmentalist, an activist and the most prominent folk musician of his generation. Neilson Barnard/Getty Images hide caption

itoggle caption Neilson Barnard/Getty Images

Pete Seeger released two albums this year: Pete Remembers Woody (a Woody Guthrie tribute) and A More Perfect Union, a collaboration with guitarist Lorre Wyatt. David Bernz/Courtesy of the artist hide caption

itoggle caption David Bernz/Courtesy of the artist