@Ligher: No not louder, it is when ju like pin point that word, you put wieght on the word... Hmm there is a swedish word, but I forgot it...
But its like imagien you are going to pull something and you say "And PULL, and PULL". The pull will be stronger but dosnet have to be particulary louder, you just pronaunce it harder.

@Gibb: Oh thats a great project!
I hadnt really come over any swedish shanties before (like the ones still on your list I reconize like Albertina (Skonnert Albertina), En sjöman älskar havet våg och O du glade sjöman) I dont really think is shanties but more song about sailors. But I can happily sing the ones I know on your list that I know if you dont have the tune :D
I do know a norwiegen that I will put up on the webpage soon... Maybe you got it, it starts with:

Solo: I Amsterdam i Holland låg ein god og gammal brigg
Ref.: HEAVE AWAY,SANTY ANA
Solo: Forsliten var dens skrog og forsliten var den rigg
Ref.: HEAVE AWAY, MY BOYS, FOR MEXICO