Infinite Sadness

Intro
E|----0--0------X-3----2-------| 
B|----1--0------X-3----3-------| 
G|----0--0------X-0----2-------| 
D|----2--2------X-0----0-------| 
A|----3--3------X-2----0-------| 
E|----0--0------X-3----X-------| 

Repeat Intro 4x. then:
Continúa después del anuncio
E|-----3---------| 
B|-----3---------| 
G|-----0---------| 
D|-----2---------| 
A|-----2---------| 
E|-----0---------| 

Intro is then repeated a numerous 
amount of times.
There's a key change near the end, 
which I haven't
figured out yet.