A song, a mother, and a daughter and a real-time miracle. You could sense the atmosphere, the silence, and the weight of something holy when the house lights went out. Then a voice. It has been years since the world heard it.  In a moment no one thought they would ever see again, Jackie’s deep, honeyed contralto—now kissed with age and rasp—rose through the silence to open their 1995 classic. Susan, now 49, walked side by side with her mother…