Most people know that Prince (1958--2016) was an iconic singer-songwriter whose creative brilliance transformed music for more than four decades. What, perhaps, they don't know is that his real name actually was Prince; that he once simultaneously held the number one spots in the US for film, single, and album; that he has a back catalogue of more than 600 songs, many of which he wrote for other people, including Madonna and Alicia Keys; and that...