“The second track to surface from Low's forthcoming, Jeff Tweedy-produced The Invisible Way is another showcase for Mimi Parker, who elicits an emotive, emotionally stirring moment on the hymn-like "So Blue." After a brief fanfare of pounding piano and grinding bass, "So Blue" pulls a tight spotlight on Parker, who sings a prayer about forgiveness and transcendence that's both hushed and gripping i”