Where about are you? One rule I have is that when you refer to my poop, you refer to it as gurr, which is what I have always thought of it since I was two years old and made up the word.
She was definitely trying to mind fuck him. I've read it in other stories, but Father Fish did it the best where the recipient goes completely baby brained upon hearing the music for any length of time. Of course, to the person affected by it, they're completely oblivious so that's why Seo-Ya was displeased; she wanted a giggling, drooling baby to tickle or tease before bed but got a normal Adam instead.