riff 1 is played throughout the whole song accept the chorus when it seems to die
out a bit and riff 2 is played just before the chorus

riff 1

g---12-12-12-12-12-12-9-12-9-7-7-7-7-9-9-9-9-9-9-7-9-7---------
d------------------------------------------------------9-9-9-9-
a--------------------------------------------------------------
e--------------------------------------------------------------

riff 2

g---12-12-12-12-12-7-7-7-9-12-12-12-12-12--------
d----------------------------------------9-9-9-9-
a------------------------------------------------
e------------------------------------------------