simplified for one guitar, TAB separated into the parts
to make the perception easy
 also I must say that I'm not sure in rightness
of riff 2, may be someone will teach me? :)

riff1:
part 1: 5-4444444444444444444444555555555555555555555555555555554444445555-
part 2: 4-4444444444444444----------------5555555555555555-----------------
        6-----------------7777777777777777----------------7777777777777777-
riff2:
part 1: 5-22222255555544224444------------44444477777755554444444444444444-
        6---------------------552222222222---------------------------------
part 2: 4-------------------------------------------------4444444444444444-
        5---------------------000000000000---------------------------------
        6-------77777777775555------------7777777777777777-----------------
transcribed by Elan (Sergey A. Peretyagin)