i'm trying to get myself as fully educated on recording as i can so this may not be the last time i ask a simple question that i should have found out awhile ago. so i've heard the word "bus" used many times when working with software and with my standalone recorder and after reading and re-reading things on how to switch busses and all this, i have yet to even understand what a bus is....so that's my question, what on earth is a bus, what does it do, and how does it benefit me?