“I will never get over you/I’ve still got a lock of your hair,” sings Christopher Owens, sounding like someone put a cigarette out on his heart. Owens’ ability to turn that kind of longing into killer psych-pop hooks made Girls’ 2009 debut so lovable. This EP homes in on a narrow spectrum — songs about loss, loneliness and drug-induced apathy. But Girls build elaborately arranged cuts like “Alright,” and they toss in pedal steel and mariachi horns without losing spazzy energy. As the second album looms, it’s exciting to hear them sound so bold and articulate.