Riff 1
G----------------------------
D---9-7----------------------  x4
A-------9-8-7?5--------------
E---------------7-777--------

Riff 2
G----------------------------
D-----------7?9-999----------  x4
A---5?-7-8-9-----------------
E?7--------------------------

Riff 3
G-----------7?9?7-----------
D-----7-8-9------9-9--------  x4
A?7?9-----------------------
E---------------------------

Ending
G?9?7-----------------------
D-----9?7------------------- x2
A---------9-8-7?5-----------
E-----------------7-777-----