On his last day as a company man, Marty Singer braced himself for the final drive to the office. It was Friday morning. The clock was ticking. But he couldn’t bear to go. So he answered another phone call. He tapped out another text. He composed another email. He sat down at his kitchen table and wept. At 10:30 a.m., he finally picked up his keys. “Be strong,” he told himself. Then he walked out his front door, into a world without J&R Music.