Josh Kurtz: What we learn from Mileah Kromer’s book on Hogan — and what we don’t

A couple of years ago, I was reading a review of a new book about The Beatles. The reviewer noted that while almost every book about The Beatles — and by now there have been hundreds, if not thousands — contains some valuable information about their backgrounds, musical influences, work habits, and personalities, none has been able to answer the essential question: How did The Beatles go, in a few short years, from being a pretty good regional Rhythm and Blues band from the north of England, to becoming, arguably, the greatest composers of the 20th century? In other words, what made them so great?