Laura Marling sheds her acoustic guitar to shred an electric in her new song “False Hope.” She starts off hesitant and ends up rocking out. Take a close listen to the natural, aggressive rise of her narrative. She reaches a sharp-tongued climax as she yells, rather than sings, “Neither of us is gonna sleep tonight!” It’s a jarring, mischievous line that fits perfectly within the sung chorus. And for icing on cake, her apartment is on the Upper West Side…