E------------------------------------------
A------------------------------------------
D------------------------------------------
G------14h16------------------------------
B------------14----------------------------
E------------------------------------------
  
this is just my interpretation of the intro.. not how they play it but this version sounds similar,
and is easier than the way they play it in the concert videos.  

If you wanted to, you could play it like this also

E------------------------------------------
A------------------------------------------
D------------------------------------------
G----12h14--------------------------------
B----------12------------------------------
E------------------------------------------


either way, you play it sixteen times until the drums kick in, then another sixteen times until the acoustic 
and bass kick in.  At some point, you stop playing it, but then you pickit back up later.