Air

 This is my interpretation of the piano chords for Air, transcribed for guitar. They  
 right to me, but they might be off a bit. Just mess around with 'em, and you should get it. 
  
  
 I think he plays the same riff throughout the song...opening, verse, chorus, etc. 
  
 Part 1 
 e|-----|-----|-----| 
 B|-(3)-|-----|-----| 
 G|--5--|--4--|--5--| 
 D|--5--|--5--|--7--|     x2 
 A|--3--|--5--|--7--| 
 E|-----|--3--|--5--| 
  
 or 
     C     G    Am 
 e|-----|--3--|--0--| 
 B|--1--|--3--|--1--| 
 G|--0--|--0--|--2--| 
 D|--2--|--0--|--2--|    x2   Doesn't sound as good to me, but whatever. 
 A|--3--|--2--|--0--| 
 E|-----|--3--|-----| 
  
 Part 2 
 e|-----|-----|-----|-----|-----| 
 B|-----|-----|-----|-----|-----| 
 G|--9--|--7--|--7--|--7--|--5--| 
 D|--x--|--0--|--0--|--0--|--0--| 
 A|--7--|--x--|--x--|--x--|--x--| 
 E|--8--|--7--|--6--|--5--|--3--| 
  
  
 There are some added little notes in there you can add if you want, but that the basic  
 of it.