For well over 30 years, Inti-Illimani (the name translates as "Sun God") has held a beacon for Chilean music, both the traditional folk styles and the more contemporary nueva cancion. Back in 1967 a group of students at Santiago's Technical University formed a band to perform folk music. Taking their name from the Aymaran Indian language of the Andes, they began playing traditional music -- something few did back then -- and quickly earned a reputation around the capital, becoming more and more adept on their instruments. By the '70s they'd grown into a political beast, taking...