Middle position on Les Paul I'm sure everyone is familiar with blending the neck and bridge pickups?
I guess there's guys who just leave everything on ten and say "that's the middle position tone, there's only one."
I'm not sure I've ever seen a 2-pup bass with a 3-way. And you don't see a guitar with a blend very often. (If ever.) I wonder why they're done that way. Would it be weird to do a 3-way on a bass?
It's because Fender-based basses are by far the norm, and the Jazz Bass doesn't have a switch. People learned to use those sorts of controls on bass, because it's what was out there all over the place, due to Fender Js and other basses based off of them.
Gibson-style basses do traditionally use switches.
The Fender Tony Franklin signature P/J has a switch; it's one of his signature mods.
The extremely popular Fender Mustang PJ Bass has always had a switch instead of a Jazz Bass style VVT setup.
Mid scooping the tone (what happens when you blend in parallel) is something that is much more likely to be desired by a bassist than by a guitarist, so it tends to stick around on basses, while rarely being used on guitars.
Some early Teles had a blend knob, but it was extremely unpopular with players, so it was ditched.
My '76 Rick 4001S and '84 MIJ Fender Jazz Bass Special both had 3-ways. I replaced them with a blend in both cases.
Mid scooping the tone (what happens when you blend in parallel) is something that is much more likely to be desired by a bassist than by a guitarist, so it tends to stick around on basses, while rarely being used on guitars.
I was toying with the idea of replacing the blend on my Jazz with a switch. Now I'm rethinking that.
That's interesting. It actually does ser/par. How does she sound in series?