At the beginning of her new live album Let X=X, recorded with the accompaniment of unconventional jazz ensemble Sexmob, avant-garde icon Laurie Anderson introduces herself as our guide for the night. “This is your captain / We are going down / We are all going down / Together,” she says, her voice as authoritative as it has ever been, even in this era of catastrophe. Her presence soothes immediately, but Laurie Anderson is not here to be a savior, as she makes clear throughout her performance.