I'm musically naive to the extreem, but i have decided it's something i want to explore a little, starting by learning bass. But I have one question really bugging me which none of my more musically inclined friends can answer for me. Why are all the strings different lengths? On most bridges the strings seem to be a few millimeters to about an inch different to each other in length. But from what i think i understand if they are all played on the same frets, they should need to all be the same total length or it wouldn't be in tune? how does this work?