The way I play it is as a simple boogie, it is based Muddy Waters versions. Key of E, slow change blues: E7 E7 E7 E7 A7 A7 E7 E7 B7 A7 E7 B7. For the first 10 bars the pattern per bar is R-3-5-6-b7-6-5-3. Bar 11 walks down from the octave: e-e-d-d-c#-c#-c-c. Bar 12 is b-b-b-b-b-b-b-b.
As with all blues, you and the drummer can work out some variations during solo sections, etc.
