Chord/Tab song: Symptom of the Universe

by Black Sabbath
tabbed by Kramer

I don't understand it, EVERY SINGLE tab i've seen of this is WRONG. I have a Black Sabbath Video and i
SEE him playing it this way. Now, he may have it tuned down or what have you, but the notes are still correct.

Main Riff
x6 x1 x6

e|-----------------|
B|------------8----|
G|-----6~-----7-6~-|
D|--5--6~--5--5-6~-|
A|--5--4~--5----4~-|
E|--3------3-------| if it is tuned down half, then you know what to do instead

G Db G G`Db

Part 2

e|-----------------|
B|-----------------|
G|-10----6----5----|
D|-10----6----5----|
A|-8-----4----3----|
E|-----------------|

[F] [Db] [C]
the break down following part 2

e|-------------------------------------|
B|-------------------------------------|
G|-5--2--2-3-0-2---0--------------5--2-|
D|-5--2----------3---2-3-0-2-3-0--5--2-| and so on...
A|-3--0---------------------------3--0-|
E|-------------------------------------|

sounds much harder than it really is eh?