South Side Shuffle - Key of D. Elmore James took a rural Mississippi rhythm to Chicago, mixed it with influences from earlier in Chicago blues history, like Kokomo Arnold and Casey Bill Weldon, and created one of the most influential shuffle patterns and guitar licks of the 20th century. The band played as close to the Broom Dusters as they could. The lead slide guitar is loosely based on many of Elmore's great licks and is in open D tuning (DADF#AD). The main rhythm guitar is also in open D tuning, giving this shuffle a raw rural sound and feel.