Riff 1, tremolo picking,
E|-----|
B|-----|
G|-----|
D|-4-3-|
A|-2-1-|
E|-----|

Riff 2, tremolo picking,
E|---------------------------------|
B|---------------------------------|
G|---------------------------------|
D|-------------------------5---4-2-|
A|-2-------2-------2-------3---2-0-|
E|-0-------3-------0---------------|

Riff 3, "normal" picking, listen carefully to get the timing,
E|-----------------------------------------------------------------|
B|-----------------------------------------------------------------|
G|------------11-9---------------------11-9-8----------------------|
D|----------9------10-9^-------------9--------10p9-9-10-10-12-10-9-|
A|---7-9-10-------------------7-9-10-------------------------------|
E|-0---------------------------------------------------------------|

E|-----------------------------------------------------------------|
B|-----------------------------------------------------------------|
G|-----------------------------------------------------------------|
D|-10p9-----------10-9---------12-10-8^^---------------------------|
A|------10p7-9-10------9-10-12-------------------------------------|
E|-----------------------------------------------------------------|