System of a Down 
Boom 
 
Intro 
F|--------------------------------------------------------------------------------| 
C|--------------------------------------------------------------------------------| 
G|--------------------------------------------------------------------------------| 
C|---1-1-0-0-1-1-0-0-1-1-0-0-1-1-0-0-1-1-0-0-1-1-0-0-1-1-0-0-1-1-0----------------| 
 
 
Verso 1 {abafe as notas} 
F|--------------------------------------------------------------------------------| 
C|--------------------------------------------------------------------------------| 
G|-5-5-5-5-5-5-5-5---4-4-4-4-4-4-4-4---10-10-10-10-10-10-10-10---5-5-5-5-5-5-5-5--| 
C|--------------------------------------------------------------------------------| 
(Toque esse riff duas veses, só que na segunda, nao abafe as notas) 
 
Refrao 
F|---------------|---------------------------------|------------------------------| 
C|---------------|---------------------------------|------------------------------| 
G|---------------|---------------------------------|------------------------------| 
C|-0---0---0---0-|-1-1-0-0-1-1-0-0-1-1-0-0-1-1-0-0-|-0---0---0---0----------------| 
 
 
Depois repita o verso e o refrao, depois toque isso: 
 
 
Ponte 
F|--------------------------------------------------------------------------------| 
C|--------------------------------------------------------------------------------| 
G|--------------------------------------------------------------------------------| 
C|---0--0--0--0--0--0--0----------------------------------------------------------| 
 
F|--------------------------------------------------------------------------------| 
C|--------------------------------------------------------------------------------| 
G|--------------------------------------------------------------------------------| 
C|---0~---7-6~--7-9-10~--3-2~--2-2-2----------------------------------------------| 
 
 
Depois repita o refrao novamente.