u/24EDO

I love microtonal music and would love to learn theory of it, but my ears aren't really good. I don't have perfect pitch, my relative pitch is also not that good, so I need training. But it seems like there's no such thing as ear trainer for 31edo. Am I missing something?

Does belting (like musical singing) allows one to sing higher or make it easier to approach to high notes (or make their tessitura higher) than classical singing?

As far as I know, 5th overtone is approximately 13 cents off so it's basically out of tune for sure. Does trumpet players play in 5th overtone too?