He was a champion of Human Rights in Central and South America. His famous song 'No soy de aqui ni soy de alla'- I'm not from here nor am I from there' is as famous in the Spanish speaking world as fellow Poet and Activist Jose Marti's poem Guantanamera was and made known here by Folk Singer and Activist Pete Seeger.
These are the towering figures that keep Dictatorships and Right Wing and Left Wing Oligarchs on notice. Cabral's voice will be sadly missed.