The final chord of “Bad Scene, Everyone’s Fault” had barely faded into oblivion when Blake Schwarzenbach laid himself bare. Standing on stage at Seattle’s Showbox Sodo, a relatively intimate venue cowering in the shadow of the baseball stadium up the street, and tuning his guitar, the mercurial leader of the recently resurrected punk outfit Jawbreaker admitted that was the first time the band had played the song live. It never felt right for the trio to trot that tune out in the past, he said, due to the rising tide of pop-punk groups coming up behind them. They missed their chance, he went on. “If I had kept on that road, I could be Machine Gun Kelly. I could be hanging out with Kardashians.” Instead, Schwarzenbach admitted, he was still living in a studio apartment in Brookly...