This Riff is played the whole song:
                                      x3
E||-----------------------------------|
B||*---------------------------------*|
G||-----------------------------------|
D||-----------------------------------|
A||*-3h5-----6p5-----3h5---3h5---6p5-*|
D||------0-0-----0-0-----0-----0------|
        pm..    pm..    pm    pm

                                      x1
E||------------------------------------|
B||------------------------------------|
G||------------------------------------|
D||------------------------------------|
A||--3h5-----6p5-----3h5---3h5-3-3-3---|
D||------0-0-----0-0-----0-----3-3-3---|
        pm..    pm..    pm    pm....