So I happened to interview Joe today and he told me some very interesting stuff, such as:
Satriani: ...Then for the solo we used the prototype Ibanez JS24, which is a 24-fret model I’ve got coming out, which has a very thick, heavy sound.
I Heart Guitar: What more can you tell us about the JS24?
Satriani: It’s a really cool thing. I’ve always liked the idea of having those frets up there but I never wanted to move the humbucking pickup. That’s always been the problem because the humbucking neck pickup really only works where Gibson stuck it on the Les Paul. To me, that’s the spot, and once you start moving it back towards the bridge it starts to become horrible-sounding. Other guitars that have had the 24 frets and they move that pickup, it’s like, you may as well get rid of it, you know? So I was determined to solve this. And what saved us was the DiMarzio Pro Track. Ibanez got this thing right up against the last fret. It’s amazing how they were able to do it. It’s got a little bit more generous cutaway to the body so you can get up there and play up there. We’re still experimenting with the bridge pickup. I’m thinking it might be a Norton, one of the pickups I designed along with the FRED and the Mo’Jo with DiMarzio. Steve Blucher at DiMarzio is a wizard, so when I say I designed the pickups, that’s a euphemism for me requesting something (laughs). I say “Steve, can you just give me something that goes, like, ‘KKRRR-RURRRR’?” and he goes “Okay. Gimmie a couple of days.”
Full interview here:
http://www.iheartguitarblog.com/2009...-satriani.html