The double notes are played together,
I attached a link to the site that this was tabbed from,
it is quite easy to pick up
http://www.youtube.com/watch?feature=player_embedded&v=3d89a_G6Fcg
56 56 67 56 56 -3-4 34
56 56 56 56 56 56 56 56 56 67 34
56 56 67 56 56 34
56 56 56 56 56 56 56 56 56 67 34
34 34 34 34 34 34 34
34 34 34 34 34 34 34 34 34 34 34 34
-3-4
56 56 67 56 56 34
56 56 56 56 56 56 56 56 56 67 34
56 56 67 56 56 34
56 56 56 56 56 56 56 56 56 67 34
56 56 67 56 56 34
56 56 56 56 56 56 56 56 56 67 34