Standard Tuning
This is the lead line played throughout the song:

C,F x2 before this is played for the first time.
~ Let Ring

The beginning part is delayed, making it sound as if it's played twice:
e|--15--13--12--------------8-10-12-13~---12-10-8-7~--------|
B|-------------13-13~---------------------------------------|
G|----------------------------------------------------------|
D|----------------------------------------------------------|
A|----------------------------------------------------------|
E|----------------------------------------------------------|

e|--15--13--12--13--12--10--8-8~---8-10-12-13~---12-10-8-7~-|
B|------------13--------------------------------------------|
G|----------------------------------------------------------|
D|----------------------------------------------------------|
A|----------------------------------------------------------|
E|----------------------------------------------------------|