Portland’s Horse Feathers play a crushingly pretty brand of pastoral folk and their most recent single, Cascades dazzles as much as anything they’ve put to tape yet. The title track features a plaintive minor key guitar figure and plinking banjo stabs with the occasional — and dramatic — cymbal wash. The b-side, “Orphan Girl,” is centered around a cooing lead vocal and lush string swashes. This is Horse Feathers at their best.