this is the begging riff to the song
it is in standard tunning

e.
b.                    2                                   2
g.99 xx 99 xx 7 x 6 x 2 xx 99         99 xx 99 xx 7 x 6 x 2 xx
d.99 xx 99 xx 7 x 6 x 2 xx 99         99 xx 99 xx 7 x 6 x 2 xx
a.77 xx 77 xx 5 x 4 x 0 xx 77 0h1h2h3 77 xx 77 xx 5 x 4 x 0 xx
E.
you get the point. it continues this until the end of the verse.