Gnome, I have read that the Royal Navy had fiddlers aboard and not singers. Also before Napoleonic times, I don't think there were any real work shantys. Sea songs, yes, but not work songs. At least that's how I understand it.

Mr. Cranky, I have read that the words to Greenland Whale Fisheries have been found on a broadside dating back to the 18th century. I would imagine singers have changed the year in the song depending on what year they were singing it.

'Course I am no expert either, I'm just an unfrozen caveman. ;-)