Rough Americana is a live-sampled burlap weave of coarse, scratchy strands of sound as disparate as soapbox Jello Biafra, ghostly Missy Elliott and sinewy Egyptian beats from the looms of two Brooklynites, DJ Mutamassik and Morgan Craft. It’s got the irregular patternless texture that marks the handmade, every improvised moment of high abstraction as utterly different as the one before. “Amid Debris” is the rare track with a filtered, staticky beat topped with guitar noodlings and thin, plucky samples; otherwise, Rough Americana eludes most melody and rhythm. Check the two “Memphis” tracks-“USA” and “Africa”-that wriggle just beyond grasp.