Loren helped with stuff, particularly the theme song as he was a musical guy. But Brendon, being a Berklee grad or whatever, did a LOT of the music and had a lot of ideas for stuff. He pushed hard to go in a more musical direction in the second half of Season 1 and beyond. Loren was way on board with that too. They were like two musical peas in a pod.I don't know of anyone else who does it though. Brendon, in a recurring theme, was a happy accident. Most people go to music school specifically though I believe.As far as payment, I've been away from that too long to know, and it depends on the specifics. But it should be well above minimum wage if it's a professional gig, I'll tell you that.Uh... a fair amount of audio material not only got letting on the cutting room floor because there was so much of it. Nowadays it would be saved and just posted online as a podcast or special DVD feature, but I think most of it is lost. As far as finished product, I think a little bit was always cut for time, so sometimes certain scenes/monologues/exchanges would get scrapped or something would just cutaway early with the little scene change guitar by Brendon. As far as content, UPN was basically handing down conflicting orders about tone, where they wanted it to be South Park, but not quite as ribald. They inisted the show attempt to meet TV-PG standards, not TV-14 or TV-M (later MA I think), and that it mostly be due to language, not sex or violence as it was supposed to be a family show. They really pushed for potty humor though, especially with Jason. Like he would be the comic relief (in a comedy show? - confusing), but like just dumb booger and fart and gross-out gags and stuff. They really wanted that; it was all about "the young male demo" (that's why UPN promoted wrestling so hard and stuff like Shasta McNasty - yuck): these guys were so out of touch and full of themselves they may as well have been part of some parody sketch on MadTV.