I rolled into Clarksdale, Mississippi as a blank slate. All I knew of it was that The Blues thrived there, now and in the past.  Before I left home, there had been a call from Tommy Polk, a talented singer-songwriter whose music has been recorded by artists like Martina McBride and Crystal Gayle. Tommy grew up in the Mississippi Delta, had gotten word of my journey and was calling to invite me to stay in his Big Pink Guest House in Clarksdale. I’ll meet Tommy himself farther downriver in Natchez.