Duo Ouro Negro were an amazing longstanding Angolan harmony group. They are criminally unknown outside the Portuguese speaking world. I've just crafted myself a personal favorites compilation, culled from the highlights of two other official hits collections; 40 Años, 40 Exitos & O Melhor do Duo Ouro Negro. My goals were to remove the weaker late 70s/80s tracks, and to generally not include tracks from Duo Ouro Negro com Sivuca, which is a stand-alone masterpiece*. FYI, I'm always looking to download of their original albums, especially those prior to the mid 70s. Please hit me up if you have a lead. These guys are seriously the best!