ok i’m not sure if this is completely true but i think the card you put in the 3rd slot in the band making is the card that always has its skilled used when you tap the last skill note... i’m pretty sure this is the case because from what i remember, i always see it like that

so i guess i recommend that you put your card with the best skill there. like if it’s a df card (like a 110%+ on notes) for to reach higher scores. idk you don’t have to do this, but i finally got all pure Roselia 4* (read both stories for them all, and lvl5 skill) maxed all their instruments, and the items that are placed around the maps so this has kinda helped me score a tad bit more! i usually score around like 165k-170k btw!! (depending on the map)