Tuning is AEADF#B
I no Karl Plays This On A 11 String Fret Less But This Sounds Pretty Close To what Dallas Plays
[ Tab from: http://www.guitaretab.com/n/nile/98987.html ]
|--------------------------------------------------------------|
|--3/7-----3/6-----------3/7-----------------------------------|
|--3/7-----3/6------3/6--3/7-----------------------------------|
|--------------------------------------------------------------|X7 i think
|--1/5-0---1/4---0-------1/5--0--1-3-1-5-----------------------|
|------0---------0------------0--1-3-1-5-----------------------|
x x x x x
| / slide up
| \ slide down
| h hammer-on
| p pull-off
| ~ vibrato
| + harmonic
| x Mute note
| / slide up
| \ slide down
| h hammer-on
| p pull-off
| ~ vibrato
| + harmonic
| x Mute note
