Watching this video of Eric Clapton performing Otis Rush’s blues standard Groaning The Blues send chills up my spine. I am so thankful I got to see Clapton with my son in Nashville when he was on the Pilgrim tour in 1998. From the very first note he played, I knew I was listening to a master guitarist. I am currently reading his autobiography. I especially love the story of his awakening and sobriety.