I don't know if anyone mentioned this since I haven't read every post in this thread, but Sir Patrick Spens (sometimes spelled Spence) is a wonderful ballad of the sea. I don't have the text on hand right now to post otherwise I would. It's about gallant Sir Patrick Spens who answers the King's summons to sail on a treacherous sea to bring the king's daughter home. It's a tragic Scottish ballad. The bit of Scottish language in it really makes it wonderful.