When I was newly out of college, I met a man named Don Light, one of Nashville’s first country music power brokers, who became a friend and mentor. I always called him “Don Light.” Many people did. Don Light had discovered a magazine writer who wanted to be a fulltime singer and, after three years of rejections, finally found a label to sign Jimmy Buffett. As an unintentional reward, Don Light was the first person to hear “Margaritaville” within an hour of its completion.