Key
/ : slide up neck
I think it's better to do this freehand rather than with a pick
because there's some tricky stuff to do later (with a pick),
so doing it free hand makes things easier.
el-----------------------------------|l
Bl-----------------------------------|l
Gl--------------4-------6---------l--| x4
Dl---------4/6-----6/8-------6-------|l
Al--------------------------0-4------|l
El-----------------------------------|l
the main riff
el-------------------------------------|l
Bl-------------------------------------|l
Gl-------4------6----------4-----------|l
Dl---4/6----6/8------6-6---8-6---------|l
Al------------------0-4-4-4-4-4--------|l
El-------------------------------------|l
Repeat as many times necessary