Intro:
Gl---------------4-5-7--5-7-------l
Dl----3-----3-5-5-5-5------5-7----l
Al-3h5-5-3h5-5-0--------------3-5-l
El------0-------------------------l

The song is played mainly in the key of C so you can make variations on your
bass but most the song continues improving with the second part of the verse:

Gl---------4-5-7--5-7-------l
Dl----3-5-5-5-5------5-7----l
Al-3h5-5-0--------------3-5-l
El--------------------------l

and you can find all the variations.  Have fun:)