How do you do the Dimebag squeal? I've heard and it's amazing, so please help me out. And, how do you tap? I don't take lessons, but I'm getting pretty good, so I want to learn how to do tapping parts, so can you guys help me out with that?
Avenged Sevenfold. November 10, 2007
BB King. December 1, 2007
Metallica. November 9, 2008
Avenged Sevenfold. November 23, 2008
You need a whammy bar that can do a reverse divebomb (e.g. like a Floyd) and just reverse divebomb a pinch harmonic. As for the tapping you just tap on a fret instead of picking the note.
My Gear:

Fender American HSS Stratocaster

Amps & Effects:
Hand-Wired JCM 800 2204
Hand-Wired V30 2x12 Cab
Keeley TS-9 Tube Screamer
ISP Decimator
EHX Holiest Grail
Modded Dunlop Crybaby
Boss RC-2 Loop Station
Well, yes, he does.

I wasn't saying he didn't, I was saying that he didn't use pinch harmonics on his squeals.