The Grey Cock is a good depressing English one. Not only is he already dead when he comes to see her, but the cockerel they try to bribe not to crow at all crows three hours early, tears and "we will meet again when the rocks all melt in the heat of the sun" kind of ending. People always try to differentiate English music from Celtic music by saying that it is jolly, which is ultimately an odd thought. Everyone's songs are about the same stuff. The human condition isn't all neatly spread accross the world according to which race experiences which part of it. I do think some cultures do have seperate definitions or musical genres to express certain emotions though: like Fado or the Blues, or songs like "Congratulations" (uurrr...!).
x ec