GROUNDED - MAIN RIFF
LOWER THAN ATLANTIS

E[-------------------------------------------------]
B[-------------------------------------------------]
G[-------------------------------------------------]
D[-12-12-12-11-7-7-7-7-7-7-7-5-5-5-4-7-7-7-7-7-7-7-]
A[-9--9--9--9--5-5-5-5-5-5-5-2-2-2-2-5-5-5-5-5-5-5-]
D[-9--9--9--9--5-5-5-5-5-5-5-2-2-2-2-5-5-5-5-5-5-5-]

E[---------------------------------------------------------]
B[---------------------------------------------------------]
G[---------------------------------------------------------]
D[-12-12-12-11-7-7-7-7-7-7-7-2-2-2-0-2-2-2-0-2-2-2-0-2-2-2-]
A[-9--9--9--9--5-5-5-5-5-5-5-2-2-2-0-2-2-2-0-2-2-2-0-2-2-2-]
D[-9--9--9--9--5-5-5-5-5-5-5-2-2-2-0-2-2-2-0-2-2-2-0-2-2-2-]

Number of strums on each chord is approximate as it varies when the riff reccurs.

Sorry it's only the main riff, I am working on the verse and bridge but I don't want to 
post them til they're definitely accurate.