Man...that Jamiroquai is off the chain! I've never really listened to him. Good stuff!
Anyway, here's what the man, Ed Friedland, had to say on the issue.
Ed Friedland on the subject:
To my way of thinking, the difference between a P and J bass goes way beyond the physical. Yes, P bass - fatter neck (usually), split pickup, chunkier tone, less highs. J bass - slimmer neck, easier to play, dual pickups, more note definition, more high frequency.
But... I think P or J bass is a lifestyle choice as well. Committing to the P means taking on a set of preferences, and inherent parameters. You can't or at least shouldn't try to play a P bass like a Jazz. That would be missing the point. The P bass is a fat, chunky-butt animal that likes to take up space. It demands a high level of attention to what you play, because every note hurts - or helps. There ain't no takin' it back with a P bass. You better mean it, or be very good at making it work. You can play fast on a P, but it's not nimble like a Jackrabbit, more like a Grizzly doing 60mph to catch something to eat. Slap on a P? Sure, it's chunkfunk, think Boz Scaggs "Lowdown". The pop on a P is not as sharp as a J. It's like getting sliced with a serrated steak knife. Ouch! Use only when you gots to cut through some tough meat. Classic P guys... Jamerson, Rainey, Rocco, Bob Glaub.
The J is a sleeker machine. Being a Jazz guy means having a little more wiggle room. It takes up less space in the mix, so you can get more active without squashing people. With great power comes great responsibility. Just because you CAN move around, does that mean you should? And if so - how to, how much, and why? The J is a bit skinnier, so you have to learn how to use that texture to fill it up, and how to play it fat when it needs to be fat. Soloing? Sure. Slap? You bet. Passive it cuts like a well honed Buck knife. Active with a good pre amp, more like a barbers razor. Classic J guys... Jerry Jemmot, Larry Graham, Jaco, Marcus...
Some people make a choice early on and stick with it. Their entire style is built around that early decision, whether it was conscious or not. You may know some of these people. Players that would no sooner pick up the other axe than they would deliberately eat rotten food. There's honor in this I think, it certainly makes your life simpler when it's Friday night and you're trying to decide which bass to put in the bag.
I think it behooves (love that word) a professional bassist to have both and spend time cultivating the characteristics of each instrument. You need to make each one speak it's native language. There are some gigs that just naturally call for one or another. Not to say you couldn't switch around. You learn alot about the nature of the P and J when you try to make one do what the other does naturally.
Personally, I'm more fascinated with the P because I've always been a J guy by first nature. The J thing is in my DNA, but the P has gotten into my blood. I love chunkin out some fat ass P bass. It feels like I'm on vacation. The J still feels like home even though I've spent years getting used to the 5 string. I am definitely a confirmed 24 fret guy now. I always wished Fender would come out with a killer 24 fret J bass. I know.. the Urge bass.... Like I said.....
On most of my gigs these days, there is the expectation that I'm going to solo. If I wasn't so damned attached to what happens between frets 21 and 24, I'd bring a J, but.... Luckily I've found something with 24 that does it for me. But I still miss the opportunity to play my Fenders. I actually go out of my way to cultivate Fender gigs. No solos please!
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