A crane shot slowly sweeps down toward a massive, billowing rose-red cape attached to someone playing an equally red grand piano. As the camera closes in on the figure, you realize it’s Alicia Keys, playing the descending triplets that begin “If I Ain’t Got You,” one of her earliest and biggest hits. Her voice, as smooth as ever, eases in with a shortened version of the hums that begin the original recording, then she starts belting out the chorus lyrics… and her voice cracks…