Elongating a 12 Bar Blues

...go to 1:00 then to 2:50 (for something a bit different) to avoid the bullshit. Sorry, but I didn't know UA-cam stopped allowing annotations. Here are all the 'unusual' chords more or less in order*
i.lensdump.com...
*the last chord is a C7#5 I use going from the I to IV chord
or
Starting at 1:11 the chord going from the I chord (C7) to the IV (F7 or F9) is 8 x 8 9 9 x. This is followed by the IV chord, F9 - x 8 7 8 8 x
At 1:14 the ascending chords are x 7 8 7 8 x -- x x 8 9 10 x --
x 10 9 10 11 x -- x x 11 10 11 11 to the I chord (C7).
At 1:19 the chord is x x 11 10 11 11.
At 1:22 x x 14 12 13 x---- x 13 14 12 x x -- x 12 13 10 13 x --
x 12 13 11 13 x --- followed by the descending 12 x 10 12 x x
11 x 10 11 x x -- 10 x 10 10 x x--- 9 x 9 10 x x -which resolves to the V chord (G9). Finally at 2:56 that 'off' chord is x x 11 10 11 11
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