Topic: Learning a song style

How would one go about learnig how to play this song? I can not find the chords anywhere online. The best part of this video is that he plays most of the song in the wrong key then starts over in the correct key. More importantly, what type of guitar playing style is this to be learned? I would think it is rooted in some type of old time country or perhaps blugrass. Any thoughts?

http://www.youtube.com/watch?v=GD6qQN04zQk

Re: Learning a song style

His guitar is tuned 2 half steps below standard. Still, if you want to play this highly arbitrary tune, you can in standard tuning. He starts off in F.
he then settles down in the key of C.
His style could be folk.
toots

We pronounce it "Guf Coast".
Ya'll wanna go down to the Guf?