Standard tuning... and if you want to play it like the acoustic Soundstage performance 
repeat the final couplet!

     Cm
From tender years you took me for granted
      Ab
But still I deigned to wander through your lungs
      Cm
While you were sleeping soundly in your bed,
       Ab
(Your drapes were silver wings, your shutters flung)

  Fm
I drew the poison from the summer's sting,
    Ab
And eased the fire out of your fevered skin.
   Fm
I moved in you and stirred your soul to sing;
    Ab
And if you'd let me I would move again.

     Bb
I've danced 'tween sunlit strands of lover's hair;
       Ab
Helped form the final words before your death.
      Bb
I've pitied you and plied your sails with air;
       Ab
Gave blessing when you rose upon my breath.

    Eb           Bb        Ab
And after all of this I am amazed,
     Eb              Bb             Ab
That I am cursed far more than I am praised.