You can probably find all the information they describe on Ultimate-guitar, Youtube, or the internet.

Personally, I won't bother

Quote by Gunpowder
Thrashturbating? Most metal of all ways to pleasure oneself.
That doesn't look like something I'd want to use. Refer to the post above.
Quote by YouTube user
Hey it's Alek from Chillin in Bodom and ears a lick for bitch who can't play dicks.

i've been getting along fine without it for some time. it's just another program that's trying to hook you by saying there's a substitute for applied hard work (which there isn't, let's be frank).
Anfangen ist leicht, Beharren eine Kunst.