You've Figured Out Rules for Poetry in This Language?

Koshu sounds like a name that I have no idea why. Koshu sounded right in my head when I was doing it, and even some other stuff like the kiddo middo sequences are just appealing to me. The translation doesn't seem to make much sense, but I'm guessing it rhymes in the language for the one, two, three, four. Doesn't really seem to hang together well in English, but I see the translation tonight.