“You can only reward yourself for being solid.” Yves! tweeted that before anyone was listening. That line wasn’t a slogan or aimed at an audience - it was a rule he set for himself. At 19, the Massachusetts-raised artist grew up in the Boston area, where there wasn’t a prominent music scene to lean on. That never stopped Yves! , who quietly began teaching himself how to record music at age 13. It didn’t start as anything serious at the time, but Yves! says “encouragement from those around...