Progression
The 12-bar blues (quick change) in E major
12-bar blues (quick change) in E major plays E7, A7 and B7 — I, IV and V — across 12 chords. The same twelve-bar blues form, ending back on the I chord for the last two bars instead of turning around on V — common when a band is vamping into a repeat.
The chords, in order
Bar 1E7I
Bar 2A7IV
Bar 3E7I
Bar 4E7I
Bar 5A7IV
Bar 6A7IV
Bar 7E7I
Bar 8E7I
Bar 9B7V
Bar 10A7IV
Bar 11E7I
Bar 12E7I