Somewhere in the back alleys of the city’s older section there was a crumbling brick building that had been around since before ragtime music was popular. Hanging above a faded green door that led down to the building’s cellar was a wooden sign, and despite the peeling paint, you could still make out the bar’s name: Pinetop’s Tavern.  Nobody really knew when Pinetop’s first opened; local folks would tell you it had been there since time began, and the world had grown up around it. It was one of those places where the lighting was always dim and the cigarette smoke never dissipated and the cloud you were breathing now had probably been around since W. C. Handy was still alive.

Pinetop’s Tavern was a blues joint, and it had been around almost as long as blues music itself. Blues music was a lot simpler than most kinds of music—simpler…