As she sang her songs of yearning, Sharon Van Etten paused to mention the fact that she’d played once before at Pitchfork. That was four years ago, and she was barely known at the time, playing an acoustic set all by herself early in the day. She sounded a little tentative and fragile back then. This time, as she introduced one of her old songs, “Save Yourself,” she reminisced: “I tried to play this song solo and it was hard to do. And now I can’t imagine doing it without these guys.” Indeed, her dynamic band seemed essential to her sound this time, turning what might have been pensive folk songs into sprawling, multicolored rock—and she sounded all the more confident in this musical setting. Van Etten sounded fierce in “Serpents,” driven by the song’s hypnotic bass and drum lines. She closed with “Every Time the Sun Comes Up,” the song that also ends her new record “Are We There,” and the passion of the tune’s mantra-like chorus felt palpable on this sunny summer afternoon. (Robert Loerzel)