An A&R's breakdown of why Wiz's mixtape strategy is the most important lesson for today's on-chain artists. Today is Wiz Khalifa’s birthday. For millions, his name evokes the triumphant horns of "Black and Yellow," the smoke-filled dorm rooms soundtracked by his laid-back anthems, or his undisputed status as a cannabis culture icon. All of this is true. But for the real students of the music industry, Wiz Khalifa represents something far more profound. Long before we had the la...