it never is straight forward, is it?

I recently posted about one of the new tunes I am learning. However, it turns out to be more complicated than that. lord_kjar looked at the tune and said that it isn't quite how they play it locally, and suggested another web page we could look at for sheet music for it. It turns out that the two versions of sheet music are different. So just now I did the same tracing exercise on the new version as I did the first version I found, and then moved the chunks of music to line up with one another so as to compare how they differed. While I was doing that he sat down with the nyckleharpa and played the tune the way he knows it, and jotted down the letters he plays.

Once I had the two versions written side by side we compared his version, and circled the places he agrees with them. It turns out that his version matches the newer version for the first three bars, then the older version for two bars, and then he alternates which version he agrees with for the rest of that half of the tune. Both versions are nearly the same for the other half of the tune (what he and one of the two versions calls part two, but what the other one plays first), but where they do disagree with one another he again takes turns as to which one he agrees with.

Then we compared the hasty notes I had taken at class last week, and they also bounce back and forth as to which one they agree with, but in places I agree with neither, and in other places I am missing whole phrases (but then, I always knew my notes were probably wrong).

So, what version should I learn???

Edit to add:

I decided on a composite--this version mostly agrees with what lord_kjar plays, but for one bar my memory of what I was taught last Monday is the same as the other set of sheet music, so I am going to stick with that version, for now.
( our composite version of Lanna Villes Scottis )