>>279864415
My guess:
Takami to Hatocchi: asking about the reason why she's playing a band even though there are so many bands better out there (projecting about his Brother)
Tono to Momo: he's going to spill his spaghetti and ask some dumb shit
Mizuo to Ayame: Some guitar tricks I guess or a casual question
Taguchi to Rin: Probably he's going to land on a landmine by asking a too personal question (nobody knows that they are cousins)