a song entitled 'Wednesday Mourn' that is apparently a sea shanty?

I have a tape of an album by The Minstrels of Mayhem (ahem) that was recorded in 1997 and titled 'Now' but I don't have any info about this particular song on the album. I've been looking for it on the Net for hours and can't find any info, either here or www.ingeb.org or the International Sea Shanty Association, or any of the hundreds of sites available for folk music. I'm starting to wonder if the MOM wrote it themselves in the style of a sea shanty? Here's the refrain. . .

Sweat a little water, sweat a little blood
Say a little prayer that the hull won't flood
8 men lie in the darkness down below
And now we're 38 men and we're only flesh and blood
And we're wondering if we're ever going to get back home

The story is about the fate of an unnamed ship setting out from 'the Isle of Green' (?) that got caught in a bad storm and wound up sinking with all hands aboard, including the captain, one Murphy by name.

I think this might be something along the lines of Bartlett's Privateers, and rather than be a true shanty,is a modern song done in the style thereof. Any thoughts or comments on this?

Whitewater