Song : P.I.G.
Band : System Of A Down
 
Riff 1
F|---10---9---9-7---7---7-8-7---5---5---7---7---7----------------------|
C|-------0-----0---0-------0---0---0---0---0---0--------------------|
G|-------------------------------------------------------------------|
C|-0-----------------------------------------------------------------|

Riff 2
F|---10-9---9-7---7---7-8-7---5---5---7------------------------------|
C|--------0-----0---0-------0---0---0--------------------------------|
G|-------------------------------------------------------------------|
C|-0-----------------------------------------------------------------|

Riff 3
F|-------------------------------------------------------------------|
C|-------------------------------------------------------------------|
G|-------------------------------------------------------------------|
C|-0--07?73?3/87-87----0--07-73-3/87-8-----------------------------|

Riff 4 
F|-------------------------------------------------------------------|
C|-------------------------------------------------------------------|
G|-------------------------------------------------------------------|
C|-0---7---3---87-87---0---7---3---87-8------------------------------|

Riff 5 
F|-------------------------------------------------------------------|
C|-------------------------------------------------------------------|
G|-------------------------------------------------------------------|
C|-0--~--------------0--~-------------0--~-------------0--~------------|

Riff 6 
F|-------------------------------------------------------------------|
C|-------------------------------------------------------------------|
G|-------------------------------------------------------------------|
C|100100100000-100100100000-100100100000-1001001001------------------|

Riff 7 
F|-------------------------------------------------------------------|
C|-------------------------------------------------------------------|
G|-------------------------------------------------------------------|
C|-0-0-0-7---7-3-3-3-8-----------------------------------------------|

Riff 8  
F|-------------------------------------------------------------------|
C|-------------------------------------------------------------------|
G|-------------------------------------------------------------------|
C|-0---7---3---87---0---7---3---87-----------------------------------|

And the order is :
Riff 1x7
Riff 2x1
Riff 3x4
Riff 4x4
Riff 3x2
Riff 4x4
Riff 3x4
Riff 6x2
Riff 3x4 (faster)
Riff 5x1
Riff 7x3
Riff 8x4
Riff 7x1