When I was about 10, a chapter from "Singing Family of the Cumberlands" was included in one of my school books, and had the words, but not tunes, to several songs. I went home and sang them, and when I heard recordings of those songs years later, I was astonished to find that the tunes I'd "made up" at age 10 were almost identical to the actual tunes. I guess that says something about the universality of music. Welcome!