In 2011, the Brooklyn bedroom-R&B production duo Beacon earned a Band To Watch distinction on the strength of their No Body EP, and they followed it up last year with a similarly evocative EP called For Now. And in a couple of months, they’ll release The Ways We Separate, the inevitable full-length debut. First single “Bring You Back” is a delicately rippling and shimmering thing, a testament to the beauty of looped and layered sounds.