I asked this in the other thread, but it didn’t get answered: Did Derry actually MIX the extraction mixes or just extract the elements and then hand those over to Linett? It looks as if he did the actual mixing as well, but it doesn't seem entirely clear to me. If he did indeed do the mixing, does anyone have any insight as to why he was chosen to do so rather than having it done by the guy who's been doing the band's work for the last 25 years? Just curious.
It says they were done under Mark's supervision. I'd imagine that means he and Mark traded files until Mark got a mix from him that he was happy with. As for why Mark didn't do it, maybe he felt like Derry had more of a grasp on how to mix with the files he extracted given that he extracted them himself, as I'm sure there are good and bad ways to mix the files in the way of revealing artifacts etc. and maybe Mark isn't as familiar with dealing with this sort of thing. Just a guess.