An innocuous but oddly touching moment arrives not quite halfway through Normal As Blueberry Pie, the new Verve platter by Nellie McKay. It’s an ostensible ad-lib on the Broadway standard “Crazy Rhythm,” which she tackles with an old-fashioned insouciance. Addressing the subject of the song as if it were animate, she assumes the inflection of someone urging a stray mutt out of the kitchen. “Get on now, go,” she coos. And then, a moment later: “Shoo! Shoo!”
