Edelwitz is an arrangement of Edelweiss from “The Sound of Music”. “witz” is the German word for “joke”. I think you’ll get it if you listen to the whole piece. The first half is kind-of a joke too, but it probably won’t be obvious to those without musical knowledge.
If you don’t get the first half, it goes through about 4 different keys, 2 time signatures, and it’s just about the sappiest thing ever. If you don’t get the second half, you either have no sense of humor or you’ve never heard the original Edelweiss.