The main bassline for the tune goes like:G----------------------------------D----------------------------------A-7-57-57----------7-57-57---------E---------5(5)5(5)---------5(5)5(5)The tune drops into the key of B every now and then for a couple rounds:G----------------------------------D----------------------------------A----------------------------------E-7-57-57-0(0)0(0)-7-57-57-0(0)0(0)..but it kinda sounds like he's using a 5-string:G----------------------------------D----------------------------------A----------------------------------E-7-57-57----------7-57-57---------B---------5-3-5(5)---------5-3-5(5)