TL;DR: Can I use a blend potentiometer to blend two audio signals?
I have an Ibanez GSR 200 bass guitar. It has a potentiometer to control the volume of the neck pickup and another potentiometer to control the volume of the bridge pickup:
I find this very annoying. I'd like to have a potentiometer that controls the general output and another that works as a "blend" control which instructs how much signal from each pickup goes to the output.
I found this page where it instructs how to use a "blend potentiometer" to archive this, but I'm fairly new to circuits and I'm not sure if this is what I'm looking for. (Also, what would be the resistance of the potentiometer? Same as the current one, 500K Ohms?)
PS: I'd also like to understand, if this is the correct way to do it, what happens when you roll the potentiometer half way? Are both signals added together?