Standard tuning

e|-15-15----------------------------------|
B|-------13-13-15-15----------------------|
G|-------------------12--12--12-12-12-----|
D|----------------------------------------|
A|----------------------------------------|
E|----------------------------------------|

e|-15-15----------------------------------|
B|-------13-13-15-15-13--13--13-13-13-----|
G|----------------------------------------|
D|----------------------------------------|
A|----------------------------------------|
E|----------------------------------------|

This is played twice for the intro and 
again later on in the song until the
end.