This week’s PBS Feature Album is Rivulets by OK EG, aka Lauren Squire and Matthew Wilson. The duo take intrepid recce’s on a Kalahari debut of fathoms-deep techno minimalism and opiated braindance styles. With release titles like Intertidal Zone, Anther, and Prismatic Spring, their ambition to evoke natural worlds is evident. But these tracks aren’t of this planet. Navigating truly alien terrain, Rivulets finds the duo imagining uncharted environments into existence through the medium of analogue hardware.