3 Draw Rule in "Caldonia"

Louis Jordon's "Caldonia" is a great example of the 3 Draw rule over the 12 Bar Blues we spoke of last week. In the opening chorus you hear boogie woogie piano... then the first theme in Chorus 2... and then the 3rd Chorus line that changes only one note per chord change... the equivalent of our 3 draw rule. Here's the part...

I7 = 1 2+ 3+ 3 2 3, Repeat
IV7 = 1 2+ 3+ 3' 2 3'
I7 = 1 2+ 3+ 3 2 3
V7 = 1 2+ 3+ 3" 2 3"
(Turnaround 2 3" 3' 3' 3" 2, 1 2+ 2" 2" 2+ 1)