This 12-bar blues sequence follows a familiar form while adding a distinctive chromatic lift. It moves to the IV7 in bar 2, returns to the I at the start of bar 3, then rises to the ♭II before dropping to the I7 in bar 4. Bars 5 and 6 sit on the classic IV7, while bars 7 and 8 repeat the I–♭II–I7 motion. In bar 9, the progression reaches the expected V7, falls to IV7 in bar 10, and closes with the same I–♭II–I7 movement across bars 11 and 12, giving the turnaround a bluesy, slightly edgy colour.