"Who knew"

So another quick one here...

The main part chords are a basic blues progression (add sevenths according to your taste) in C:
C C C C
F F C C
G G C C

The bridge is basically just:
Eb Eb C C for most of it, like 4 times, I think...
...and then fret by fret down towards to C from Eb... Eb, D, C#... for the end part of it.

There might some else in there, but those two progressions are the core of things happening...