People have made a few good attempts at tabbing this song, but the following is how
actually plays the intro/ verse riff. It's based on the E minor scale, starting on the 7th
of the A string. The chord names show the implied tonality of the progression.

  Em                                                           G
---------------------------------------------------------------------------------|
---------------------------------------------------------------------------------|
---------------------------------------------------------------------------------|
-----7---9--------7---9--------7----9---------7---9----------7---9---------------|
-7------------7------------7--------10---10------------10-------------10---------|
-0-------------------------------------------------------------------------------|

 D/F#                                                        Am
----------------------------------------------------------------------------------|
------------------------------------------------8---------------------------------|
----------------------------------------------------------------------------------|
-----7---9-------7---9---7--------7---9---10--------10----9---7-------------------|
-9-----------9---------------9-------------------------------------10-------------|
----------------------------------------------------------------------------------|


The electric guitar plays the following riff starting on the off beat during the verses:


----------------------------------------------------------------------------|
---------7---------------8----------------10---------------12---------------|
------7---------------7----------------7----------------9-------------------|
---9---------------5----------------7---------------10----------------------|
----------------------------------------------------------------------------|
----------------------------------------------------------------------------|


In the pre-chorus the electric does the following "octaves" riff. Some of the slides are
little tricky;)

-------------------------------------------------------------------------------|
-------------------------------------------------------------------------------|
-9-------9---11/-12------12---7-/-14-----14--16--5------5------7-/-9-----------|
-------------------------------------------------------------------------------|
-7-------7---9-/-10------10---5-/-12-----12--14--3------3------5-/-7-----------|
-------------------------------------------------------------------------------|
                            sl                             sl                           sl           sl

------------------------------------------------------------------------------|
------------------------------------------------------------------------------|
-(9)------9--11-/-12-------12---7-/-14-----14---16-/-17------17---17----------|
------------------------------------------------------------------------------|
-(7)------7---9-/-10-------10---5-/-12-----12---14-/-15------15---15----------|
------------------------------------------------------------------------------|
                            sl                               sl
  sl

For the chorus, rhythm guitar strums Em G D Am using the standard open chords that we
know so well. The electric does a high funk riff that I haven't worked out the voicing for.
The Bridge goes: C  Am  C  Am  C  Am  C  D  D#
Enjoy!