Intro:
   Em                    Am                  Em                 Am
E|7-------7h8------------5--------5-7-8-7-5-7-------7h8p7-------5----------|
B|8----------7h8p7---8---5--------5---------8------------8---8--5----------|
G|9----------------9-----5--------5---------9--------------9----5----------|
D|-------------------------------------------------------------------------|
A|-------------------------------------------------------------------------|
E|-------------------------------------------------------------------------|

Riff principal
E|7-----------------7h8--5-------------5h7--7---------7h8-5------------5h7-|
B|8----------------------5------------------8-------------5----------------|
G|9----------------------5------------------9-------------5----------------|
D|-------------------------------------------------------------------------|
A|-------------------------------------------------------------------------|
E|-------------------------------------------------------------------------|