hey guys i wasnt sure where this belongs
but what is a string rip/how do you do it?
i heard somebody say that herman li can do it while i was watching a live version of Storming the Burning Fields (at the end i think where he does the high pitched noise but im not sure)

heres the live version that i watched

thanks in advance
you dont need to play it perfectly, just deal with it.

bend the string off of the neck, and onto the binding or whatever on the side, should sound weird
but really, it's ONE note, doesnt need to be replicated perfect