u/Easy-Treacle-9367

So I'm kinda new to LifeGen. I downloaded it a few days ago and I can't remember the last time I watched a playthrough of it. I'm not too sure how the 'heart' and 'blood(?) drop' patrols work on the lifegen tab, because they always seem to be greyed out. I'm sort of confused- could someone help me out with the patrols that this mod added? I want to use them but don't know how

Just the title. I know they new tracks are in new and updated chapters, but I'm asking what choices lead to which songs? I know "What's Left After the Fire" plays when you let the last torch blow out in Happily Ever After, but when do you hear "Thirty-Trillion Cells", for instance? I love the soundtrack and want to know where it ties into the game