I was trying to figure out which job goes with the engineering of guitars and basses but cant think of it.. can anyone help?
there has to be some kind of work behind it due to making of pick ups and the change in shape and wood can alter the feel and sound of a guitar

I disagree with both of the previous answers. I’m a drummer, and I didnt want to become a musician. so i went with materials engineering in the hope that someday i might be able to design custom cymbals :)

But there are a few options you could consider. My school USED to have an audio engineering program. I wouldve done it too if they werent cancelling it. but look into that.

Mechanical is just good all around. Im sure you can put it to use in designing guitars.

Electrical would be good if you’re designing pickups or amps etc. Having engineering background is important if you’re going to be doing any sort of designing. In reality, however, to be a guitar maker, i think you just have to be a guitar maker lol. good luck