tabbed by Jess  (*)

riff one 

G--------|---------------------
D--------|----6----------------
A--------|4-6-----4-6-4--------
E--2-3-4-|------6-------6-4----

riff two
                       first three times        fourth    
G--------------------|-----------------------|----------
D--------------------|-----------------------|----------
A--4-4-4-2-5-5-5-5-5-|-----------------------|----------
E--------------------|7-7-7-7-6-5-4-4-4-4----|-77-77-77-

riff three 
                           first three times
G--------------------|-----------------------|--------------
D--------------------|-----------------------|--------------
A--4-4-4-2-5-5-5-5-5-|-----------------------|-66666666666--
E--------------------|7-7-7-7-6-5-4-4-4-4----|--------------

riff four
                              x3
G-------------------------------|---------------------------
D-------------------------------|---------------------------
A---777777----------------------|-777777------666666666666--
E---------777777-224-224-224-224|-------777777--------------