Standard tuning
Capo version (4th fret)

Intro chords:
Am - G - F - F - C - G

Verse:
    Am         F           G        C
The rains move eastward in waves of succession
Am                F              E
Drawing lines of grey across the sky
     Am               F         G           C
With history just as close as a hand on the shoulder
   Am          F            E
In hunger and impatience we cry
    Am             F          G             C
The battle against corruption rages in each corner
      Am                F                 E   
There must be something better, something pure
        Am         F                 G            C
And the call it is answered from the caves to the cities
         Am          F           E
Come the dealers of Salvation on Earth 

Violin part:
Am - F - G - C
Am - F - E
Am - F - G - C
Am - F - E

Verse:
      Am                 F             G            C
We've seen the restless children at the head of the columns
        Am         F               E
Come to purify the future with the arrogance of youth
Am             F            G                C           
Nothing is as cruel as the righteousness of innocents
     Am          F           E
With automatic weapons and a gospel of the truth 

Chorus:
E              D      C                B
Revolution for ever, succession of the seasons
  C                 G            F                 E
Within the blood of Nature, all raised to rot and die
     F       E              Am - F - G - C etc.
This purity, purity is a lie

Violin part

Verse:
     Am           F           G          C
Now immaculate conception in sterilised laboratories
Am       F          E
How the vanity goes on
          Am             F                 G          C
Or in the message of the preacher with his morals and obsessions
    Am           F          E
The wars that we wage upon ourselves
G                   F
Purity is a virtue, purity is an angel
Am                            E
Purity is for madmen to make fools of us all
   Am                   F           G                C
So forgive yourself my friend, all this will soon be over
     Am              F        E
What happened here tonight is nothing at all 

Chorus:
E              D      C                B
Revolution for ever, succession of the seasons
   C                 G            F                 E
Within the blood of Nature, all raised to rot and die
     F       E              Am - F - G - C etc.
This purity, purity is a lie 

Violin part

       Am         F               G           C
I will always see Brendan at that broken down piano
     Am               F    E
His fingers thick and red, shaking on the keys
Am              F        G            C
Battered by the years of alcohol and working
       Am               F               E
Still playing with the faith that never leaves
    Am          F               G                C
So sit us down, buy us a drink, tell us a good story
Am           F    E
Sing us a song we know to be true
  Am            F          G             C
I don't give a damn that I never will be worthy
Am           F   E                   Am... etc
Fear is the only enemy that I still know

Violin outro

I couldn't find these anywhere so I worked them out. 'Purity is a virtue...' may 
not be 100% but it can work well this way.

Great song, enjoy.