WHAT SONG are you listening to right now?

The show's (and perhaps the year's) high point was the draining, 15-minute-plus finale of "Down By the River." Young and guitarist Steve Cropper squared off like Ali and Frazier in Manila, each prodding the other to new heights of ragged glory, an epic rock'n'roll classic reinvented, renewed, re-created. It was a miraculous display of will, of passion, and of soul, and it left no doubt on this evening as to who was the teacher and who was the student.