THE STROKE TOOK RANDY TRAVIS’ SINGING VOICE. ON JULY 10, A SONG FROM BEFORE IT COMES BACK. Randy Travis did not need many notes to change country music. That baritone was enough. It carried “Forever and Ever, Amen.” It helped pull country back toward tradition. It gave him 23 No. 1 songs, seven Grammys, and a place in the hearts of people who still know exactly where they were when they first heard him sing. Then came July 2013. A massive stroke nearly took his life. He survived, but the voice t