A lot of ink has been spilled on Lisbon, Portugal’s Principe imprint over the past several months, but few commentators have focused on the breadth and quality control that the label has achieved in just five original releases. DJ Marfox and DJ Nigga Fox have (somewhat fairly) garnered much of the plaudits from the press, largely because of their wildly creative synthesis of Lusophone-derived production methods, but each of Principe’s releases has shone a different light on Lisbon’s prismatic dance scene. As far as redefinition goes, Principe’s star act is Niagara, the trio made up of brothers António and Alberto Arruda, and Sara Eckerson. Working almost exclusively in the range of house and techno, the trio might lack the polyrhythmic capabilities of some of their label-mates, but they more than make up for it with melodic innovation and a keen sense of the grittier ends of texture. The most obvious contemporary comparison is Actress, but Niagara’s dubby…