So what exactly does each category entail, when does the run start? when does it end? How do you set up for each run? I feel the rules should be more complete to avoid pointless questions like this

when you select song 1 and ends when the stats for song 84 appear, pretty simple lol

setup is own the game and play through it ?????????

No, Plumato. I have a new re-route to save time than the way Morpha set it up.