This is an unusual tune, but very singable. In fact, there seemed to be a week, when I heard everyone in the house humming it at one time or another. So that seemed a good criteria to add it to the list. However, it has been popularised by Lankum who play it in E major. I’m doubtful that any of us want to play a tune with four sharps… so I’ve transposed it down to D… but beware if you are learning it by ear from Youtube or Spotify. Fortunately I think the group with the harmonica play it in D… (one trick is to start on a D and then you should be in the right place).

Lankum on stage
Harp
Group with harmonica (in D I think)

Pdf here