Standard Tuning

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--------------------6-6-6---------------------------------------------
9-9-9-----6-6-6-----6-6-6-----4-4-4-----------------------------------
9-9-9-----6-6-6-----4-4-4-----4-4-4-----------------------------------
7-7-7-----4-4-4-----4-4-4-----2-2-2-----------------------------------

This main riff is repeated except for a few parts, but those have already been tabbed out. This isn't the way they play it, but it sounds pretty good (and powerful.)