X=mute and strum

intro-3X
|-----------------------|
|-----------------------|
|-----------------------|
|----------0-0----------|
|-2-2-2-2-----0-00------|
|-----------------------|

main riff -3X

|-------------------------------------|
|-------------0-0---------------------|
|-0-0-0-0----7-7-0--0-0---------------|
|-0-0-0-0----7-7-7--7-7---------------|
|-9-9-9-9XX--5-5-7--7-7---------------|
|-7-7-7-7XX------5--5-5---------------|

RIFF 2 (after main riff) -

|--------------------------------------|
|-------0-------M--R-------------------|
|-0-0XX-7-0-0---A--I-------------------|
|-4-7XX-7-9-9---I--F-------------------|
|-4-7XX-5-9-9---N--F-------------------|
|-2-5XX---7-7--------------------------|