#1
It might be becouse I'm not playing it to its full speed, but if that is not the prob, how do you get the cool sound out of the "as the palaces burn" solo (By Lamb of god)
I'm gonna drive all night, take some speed. I'm gonna wait for the sun to shine down on me. I cut a hole in my roof in the shape of a heart snf I' goin' out west where they'll appreciate me"

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#3
sounds like its been harmonised. which u wont be able to do by yourself. other than that, i dont know what you mean by a 'cool sound'.
THE GODS MADE HEAVY METAL