My question.
How is possible that a JAZZ BASS PLAYER could be without GROOVE/SWING?
Are you asking how can I survive without swinging? To be honest, in jazz, swinging is that pinnacle of groove, where you're in the zone, where everything just seems to feel right. Usually, it's when you look over at your drummer and the two of you are exchanging smiles while the soloist just seems to float right over our groove.
But, in other genres, their groove is their own "swing." Now, in swinging jazz, that groove is a walking line. But I also was brought up at about the same time to play salsa, and we used the phrase "swinging" when something felt really good there. Doesn't really need to be swing for it to swing, dig?
My question.
What would happen to a bass player who starts adding way too many different lengths notes in Swing Jazz?
Good question. If you start playing way too many different notes like that, you would absolutely stop swinging. I feel there needs to be some occasional triplet establishment in the walking line, but it's kind of like making a gumbo. A pinch of salt here, a bit of pepper there. Sometimes, I would add too many triplets in a row, and the groove suffers. But once I start digging in and walking those quarter notes again, everything smooths out, and it feels better. Get too busy, and do something like turn that beat around, and you're toast after the gig.
I believe that a jazz musician has the potential to be proficient in any genre, provided he doesn't let his "artistry" that says jazz is "the best" get in the way. Lots of your busy players are either jazz based guys or try to sound like Vic. The sad thing is, they have the chops to learn how to groove in other genres, but they usually think they're "improving" the genre by showing other audiences what the bass can do. It's like if Anthony Daniels started to try to take the lead as C-3PO and tell the rest of the group what to do. The audience and the players would both be flabbergasted.
A guy I work for replaced another bass player with me, mainly because they went to play at a certain classic rock musician's gig (names withheld because that guy may be on this board, I don't know). This old celebrity and his sound guy approached the bandleader and asked what the deal is with his bass player. He just wouldn't stop playing the whole sound check, and played as fast and as many notes as possible, and his own check had nothing to do with what he was going to play that night. His busy playing tripped up the players, and this old rocker, who's friends with the bandleader, told him that bassist isn't the right fit.