The tuning is: 6 = E, 5 = F, 4 = C, 3 = F, 2 = A, 1 = E (low  to high) 
 
Moderately: 
 
--------3-------------3------3-----------3---- 
---------------------------------------------- 
---------------------------------------------- 
---2-2~-----2-----2b~-------------2---2~------ 
-2--------2---2-2-------2--2----2---2--------- 
---------------------------------------------- 
 
Repeat that 4 or 5 times with some ad-lib variations, then: 
                                       x2   
---------------------------------------:------- 
----3--5--7--5--7-----0--3--5--7--5--7-:------- 
-0--3--5--7--5--7-----0--3--5--7--5--7-:------- 
-0--3--5--7--5--7-----0--3--5--7--5--7-:------- 
-0--3--5--7--5--7--0--0--3--5--7--5--7-:------- 
---------------------------------------:------- 
 
Go back to the first riff, then: 
 
--------------------------------------------------------------------- 
---2--2--2-2--2/5-5--5-5-5-5-5~~---0--3--5--0-------0-0--3--5--0----- 
---2--2--2-2--2/5-5--5-5-5-5-5~~---0--3--5--0-------0-0--3--5--0----- 
-2-2--2--2-2--2/5-5--5-5-5-5-5~~---0--3--5--0----0--0-0--3--5--0----- 
-2-2--2--2-2--2/5-5--5-5-5-5-5~~-0-0--3--5--0--0----0-0--3--5--0----- 
---------------------------------------------------------------------