#1
So Marty Friedman just released that new album, and Alexi Laiho guested on Lycanthrope. I want to learn it by ear but I don't know what tuning it's in and there are no tabs of it either. It'd be super cool if one of you guys could help me out. Cheers!

https://www.youtube.com/watch?v=IyIjr9N5SBg
There's the song.
Quote by luxeion
i keep asking my dad for wood. but he keeps getting annoyed (he's working on a house). and i'm too young to go outside.

#3
It is D tuning.

Intro looks sth like that:

G=----------------------------0-9-7---------------------2-0-2-4---------
D=2-2-0-2---2-0-3-2-2-0-----------2-2-0-2--2-0-------------2--0---