First thing's first...
The tab put up for this originally, is like, 90% right,
but it's not, if that makes ANY sense.

I learned the song initially off the tab up here, then I saw the live acoustic performance of the song on youtube
and noticed that the chords Fred was playing were different, I tried playing along to Fred's chords but it sounded different
and I realised that it's because the song is played in different tuning. you only tune down the A string a step to G.
which wouldn't normally make a difference to playing it in standard except that it's SO much easier to play the bridge
section as you need a-LOT of G notes, which is why he tunsed it down: for beginners, take note:

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