The intro is used with a slight delay Drop d tuning
[ Tab from: https://www.guitartabs.cc/tabs/a/apex_theory/apposibly_tab.html ]
e ----17--15h17--13h15------------------------------------
B ----------------------17h18--15h17--14--14h15p14--------
G ---------------------------------------------------14---
D --------------------------------------------------------
A --------------------------------------------------------
D --------------------------------------------------------
This is the part after the intro and the chorus
e --------------------------------------------------------
B --------------------------------------------------------
G --------------------------------------------------------
D ---8--8-8----0-0-0--7-7-7-7----8-8-8-8--0-0-0--7-7-7-7--
A ---8--8-8----0-0-0--7-7-7-7----8-8-8-8--0-0-0--7-7-7-7--
D ---8--8-8----0-0-0--7-7-7-7----8-8-8-8--0-0-0--7-7-7-7--