The First Nowell in wrong category

[Ruelas-Villela]

I will upload a version of the christmas carol called "The First Nowell", but I find two pages with the wrong clasification,
the first one is https://imslp.org/wiki/The_First_Nowell ... r%2C_John) at first the carol, is not composed by John Stainer, is a English Folk song, and it will be clasified in this category https://imslp.org/wiki/Category:Folk_So ... ollections
Then the arrenger isn't Robert A. Hudson, the arreger it's actually John Stainer, Hudson it's only who transcribed the piece.

And then, this other page https://imslp.org/wiki/The_First_Nowell ... 2C_Michel) it's the same song, with the same issues of clasification, and the arrenger is Michael Rondeau, but the song stills be an English Folk Song.

[Carolus]

This is because arrangements of folk songs go under the arranger's category page as if it were a composition. Since folk songs are simply melodies with text, almost any setting is going to be an arrangement of one type or another. Some arrangements are very extensive, with so much new material added it really is more of a new composition while others are much more modest and consist of a simple chorale-type harmonization or possibly a simple piano accompaniment. These often appear under the arranger's own "arrangements" tab.