"Slabadubadelle" by Mette

I'm almost done researching cover songs recorded for the Danish children's TV series Bullerfnis but am stumped on the last one.

Back in 1972, a Danish artist named Mette recorded a song called "Slabadubadelle". The label credits it to "Traditional" with arrangement by Gustav Winckler. However, I can't find any further info on this, nor any other recordings besides the later cover by Bullerfnis. I would think if it were a traditional song there would be some other recordings of it. Can anyone help with this?

Discogs: https://www.discogs.com/Mette-The-Comets-S%C3%B8rens-Far-Slabadubadelle/release/…

Credits for this (adaption) work: T-205.010.910-6

The English version by Union Express calls Ring a Ring of Roses and is from 1971

There are lots of adaptions because the music is DP (public domain).