Why - Kevins Cancer chords

Since Why? music doesn't get posted often and Kevin's Cancer is one of my favorite songs 
I figured I might as well be the one to post this. I learned this by ear on my piano 
but I'm fairly certain it's correct.

Intro: G-Bm-G-Bm-Em-D-C


G                 D                   Em
There are no indisputable histories of Christmas
        C              G
Playing possum in a PO box
         D           Em           C
With the key I'll receive in good time
   G                 D                   Em
Or vague, indefinite afterlife scenarios
            C
On loop playing true
   G                   D             Em          C
Unnoticed, deep in the rustiest back silos of my mind

[ Tab from: http://www.guitaretab.com/w/why/348702.html ]
     Em             G          D
No I know with no uncertainty
                         C
That I'm uncertain and I don't know
  Em             G          D  C
I know with no uncertainty


G              C
Kevin's cancer said


          G                        D
You say I should pray that Yud-Hey-Vav-Hey
           Em
Would stay above me
        C                  G
But for all this chaos and dread
           D               Em
I need not one cloth on my head
                  C
To hold it all in with
G                     D
And so I go without a care
              Em                C
Head bare and somehow I'm still here
                  G
Lay your mother's dread in her grave
D                  Em            C
Savor the gift and behave in its midst


     Em             G          D
No I know with no uncertainty
                         C
That I'm uncertain and I don't know
  Em             G          D  C
I know with no uncertainty


G              C
Kevin's cancer said