The tunning on the album is drop C#, but drop D works just as well to jam the song in
the garage. This is one of my fav. Sabbath songs. It is much tougher to keep all the
parts in order than to actually play the song. I am doing this from memory so it
includes the riffs and nothing about measures, or how many times to repeat. You'll
definalty need a copy of the song to sort this one out.
The riffs are listed in what I beleve is the corect arangement.

Intro Riff - 
e|----------------|------------------|
B|----------------|------------------|
G|----------------|------------------|
D|----------------|------------------|
A|0---7-6-7-6-7---|-13-13-0-12-13-6-7|
D|0---7-6-7-6-7---|-13-13-0-12-13-6-7|

Verse Riff
  To much in the truth they say.
e|----------------------|
B|77-----77------555--5--5--5--|
G|77-----77------555--5--5--5--|
D|77-----77------555--5--5--5--|
A|55-000-55--000-333--3--3--3--|
D|00-000-00--000---------------|

Riff after first verse
e|---------------------------|
B|---------------------------|
G|---------------------------|
D|--5-4----------------------|
A|--3-2-3-55--875---55--873--|
D|---------------------------|

Chorus
    You're gonna go instane.      
e|------------------------------------|
B|------------------------------------|
G|--------------------------5-7777----|
D|----------------5-4-------5-7777----|
A|----------------3-2-------5-7777----|
D|--------------------------5-7777----|

Slow part
e|-----------------------|
B|-5----5----------------|
G|-5-5-----5--3-3--3-33--| 
D|-5----------3------33--| 
A|-5--5--5----3---3------|
D|-5----------3----------| (many be a little inacurate)

(Bridge to second verse arangement)
e|----------------------------|
B|----------------------------|
G|----------------------------|
D|----------------------------|
A|----------------------------|
D|-55--3--55--3-3-55-3-0--0-00|

e|----------------------------|
B|----------------------------|
G|----------------------------|
D|----------------------------|
A|-55--3--55--3-3-55-3-0--0-00|
D|-55--3--55--3-3-55-3-0--0-00|

Second Verse
   I dont know whats happening.
e|---------------------------------------|
B|------------------------------575------|(the fill here is a bend)
G|----------------------------------7----|
D|---------------------------------------|
A|-5-5----5-----5----3-------3-----------|
D|-5-5----5-----5----3-------3-----------|