Tune all strings down 1 step (D G C F) 
Note that Eirik plays a 5-string, so it may occur that 
I transcribe a part an octave higher... 
 
 
Riff A 
F   {----------------|-----------------------} 
C   {-----------2----|-----------------------} 
G   {----------------|-----------------------} 
D   {--2-------------|----2-------/7----5----} 
 
 
 
Riff B 
F   {-------------------------------------|------------------- 
C   {-------------------------------------|------------------- 
G   {--------------------4-4-4-4--4-4-4-4-|-5-5-5-5--5-5-5-5-- 
D   {--2-2-2-2--2-2-2-2-------------------|------------------- 
 
 
F   --------------------|--------------------------------------| 
C   --------------------|--------------------------------------| 
G   --0-0-0-0-----------|--------------------4-4-4-4--4-4-4-4--| 
D   -----------4-4-4-4--|--2-2-2-2--2-2-2-2--------------------| 
 
 
F   --------------------------------------} 
C   --------------------------------------} 
G   --2-2-2-2--2-2-2-2--2-2-2-2--2-2-2-2--} 
D   --------------------------------------}