I love this Austrian folk song! I have used it (1) to reinforce 3/4 meter; (2) to practice "singing voice" (head voice); (3) to teach "yodeling" - and then I show youtube examples of yodeling (see below). I've used it with 3rd, 4th, and 5th graders. Especially the 3rd graders love it!
Yodeling examples on youtube.