I teach this song in my Lesson Pack Volume 10 https://www.daddystovepipe.com/guitar...​ Standard tuning key of E I'm playing a 1946 Gibson L50, slightly amplified Lightnin' recorded this song several times. This version is based on a live version (solo). He also has a version with a band which is in a different key (A). Painting of Lightnin' by myself, acrylic on canvas.