It is enormously cool that you're double-checking things! I was hoping people would, but worried people would just think it was lazy writing when things contradicted each other, so that's fabulous to hear. The full game will let you add things people say to their profiles on the family tree screen that persist over all the routes, so hopefully that'll make it more fun. ^_^
For the music cues... that sounds mysterious even to me. The only one I can think of is the short version of the cues that play on the day intro screens. That one is quite short, and usually gets turned off after only one line when it occurs during the game itself, so if you click a bit faster because you've already read things it might never reoccur?
Anyway, I'll definitely check that out and see if there's something I can track down there. Thanks for telling me! 😊