Argentinean music

On Sunday I went to an open-air, public concert to watch two bands played. The first was Semilla - a group I had seen before at a Tango bar near my house. They were really awesome. Here's my favorite song - unfortunately in two parts:

The second was Duo Coplanacu - a really famous Argentinean band which plays folklore music. Everyone absolutely loved these guys. This was my favorite song of theirs: