Well, the song uses a picking pattern, but you can play chords too, of course.
The chords are (from what I can hear) 

Capo 2

C Am Dm G

You can play these the whole song without it sounding incorrect.


C (x32010@1)      Am (x02210@1)         Dm (xx0231@1) GWill (320003@1)you say when I'm gone away 
 C (x32010@1)      Am (x02210@1)       Dm (xx0231@1)     G"my (320003@1)lover came to me and we'd lay 
   C (x32010@1)      Am (x02210@1)       Dm (xx0231@1)  Gin (320003@1)rooms unfamiliar but until now" 

C Am Dm G