Thanks!! i have tried chasing that lead.. (found only childrens songs on youtube so I thought it might be based on a childrens song.. your posts above those were awesome but guess not the same style haha)
Also there was a deckhand on that ship called Henrik Wallgren[0], guess it could be the same person wonder how likely you think that is..
[0] https://youtu.be/VHeAlOcHeSI