It's okay, GTC. I like your notation a lot. Including bar lines on the line of note values would make it faster for me to match up, just save counting out letters and drawing in my own.

BTW, I don't know the tune. But it's lovely. I wish I did. So when someone solves the mystery, I hope there are also lovely words!

I'm not very Asian-literate about names, especially when some people keep the family name first and others switch things around to go with the format of English. So what's your given name? That's usually how we address each other here? Or you could pick a fun name...