Part of BBC's Freedom 2014 programming: Natalio Cosoy's passionate explanation of the music of Argentina's often coded popular and folk songs during both military rule and after. A wonderful half-hour of 'anthems to perseverance', as he says, 'what music can actually do, in terms of instilling freedom into society.'
Manifestación de las Madres de Plaza de Mayo en 1983, //diarioinedito.com/Nota/7932. Click on image to take you to the BBC page. Not ever sure how long these things are available for, but this image gives you all the tracking information.
This is an exciting series. Here is a link to hip-hop in Africa. For someone, me, who came to African music in the pre-African Rap late-80s, this program explains much that I had seen as neo-colonialism. Again, it and the words were and are coded, flying under the radar of convention, tradition and military regimes.