Hi there,
one riff goes throughout the whole song and these are its chords:F#, A, F#, D

for example:


F#
 Now that the lights are on
A
 and i see what i have done
 F#                                               D
can i take back what i said when the lights were off?

I suggest playing them as powerchords with bridge pickup selected.
also dont let the chords ring and kill the notes- excluding the D-chord where it 
has to ring.

the riff is fairly simple and i guess its nuff said- just listen closely for rhythm and 
are set.

kind regards
Max W. Hardlight