Goodness! I didn't know there were so many other melancholic music lovers! Thank you all so much for your ideas!

I'm planning to make some time during the coming week to find and listen to all your suggestions - what a treat! and hopefully find one that speaks (or sings) to me. I'd like it to be a traditional, though, not contemporary (but I'll still listen to all contemporary suggestions, just in case).

Keep them coming! :)