Prince Rogers Nelson , known to us all simply as Prince , (and for a time, "The Artist" ), has passed away at the age of 57.  Prince was a provocative, often controversial, and always brilliant entertainer, one whose gifts as a musician and willingness to carve his own path awarded him status as either an inspiration or a question mark.  He was essential to the story of Rock 'N' Roll and it's strange that he's no longer with us. A little over thirty years ago, Tipper Gore tried to save us from Prince .  Did you know that?  Long before her husband Al served as Vice President, got ridiculed for "inventing the Internet," and became the spokesman for climate change, she was a Senator's wife who took issue with the music industry's then relaxed stance on lyrical content.  An evidently out of touch mother, Gore purchased a copy of Purple Rain for her daughter who, at the time, wasn't yet a teenager.  And it was with the song "Darling...