This is opening guitar part is a depiction of Robert Johnson who is perhaps the most notorious Bluesman in history. The song is “The Crossroads”, one of 29 compositions, and one of 42 known recordings (figures from Wikipedia) I love the timing and feel between the guitar and vocals. I think his guitar work is underrated, sing along guitar playing tends to be simplistic/economical, but I think it is strong and evocative, a truely inspiring work of art.