The bells or xylophone or whatever in the intro is just Am G F x 3, then E, but played like...

A---77----55---33---33----|
E-5-----3----1----1-------|

x3, then

A---22---22---22---22-------------|
E-0----0----0----0----------------|

You can play the chords for the song or play the rhythm like it is above, both sound 
Here's the chords with the words for the whole song.

Am                  G                     F
For four four nights I have fled from my fortress
Am           G                  F
Foraging forests five footsteps in length
Am           G                     F
Fortitude found within forty ounce bottles
Am                G                         F
Flowing like flies from your face
E
From your face

Am                G                         F
My neighborhood has been filled brim with black cats
       Am              G                    F
And when I go driving they walk in my path
E
All the time, every time
                    Am              G                 F
La da dada dum da da dum da da dum
                    Am                G                 F
La deeda da dum da da dum da da dum
                      Am              G                 F     
                                 E
La deeda da dum da da dum da da dum da da dum da da dum

Am                  G                      F
First we were babies, we're birthing and dying
Am                   G                         F
Then we were children, we're playing and crying
Am                     G                   F
Then we're teenagers we're smoking and fucking
Am                  G                      F
Now we're all grownup and we're sadly sighing
        Am               G                   F
And lacking but lurking and licking our wounds
                Am         G                  F
We've created by lusting and lying
E
To ourselves and to others
                    Am                G               F       
                         E
We're sadly sigh-hyhy-hy-hyhy-hyhy-hy-hyhy-hy-ing
                    Am                G               F       
                               E
We're sadly sigh-hyhy-hy-hyhy-hy-hyhy-hy-hyhy-hy-ing
                    Am                G               F       
                                E
We're sadly sigh-hyhy-hy-hyhy-hy-hyhy-hy-hyhy-hy-ing
                    Am                G               F       
                         E
We're sadly sigh-hyhy-hy-hyhy-hy-hyhy-hy-hyhy-ing

        Am            G      F
And I'd like to be a big ball of meat
        Am       G           F
For bees to buzz around and eat
             E
When I die, so I might be granted
                        Am
One sense of purpose

END

Almost 100% sure on this. Correct it if I'm wrong.