riff #1 
a]-------------------------------------------------------------------- 
d]----------------------------33333333-2222-1111---------------------- 
g]33333333-22222222--------------------------------------------------- 
e]-------------------------------------------------------------------- 

riff #2 
a]-------------------------------------------------------------------- 
d]-------------------------------------------------------------------- 
g]6h7h777-2h3h333-0-2-3----------------------------------------------- 
e]-------------------------------------------------------------------- 

the key 
riff#1 x 4 
riff#2 x 2 
riff#1 x 6 
riff#2 x 2 
riff#1 x 4 
riff#2 x 2 
riff#1 x 2 
riff#2 x 3