I'll add that I really like Leonard Cohen, and nominating him as miserable is in no way a criticism on my part. My parents played Leonard to me when I was very young, my folk club seems to think this explains a lot. Jon Harvison writes and sings some stonkingly miserable songs (getting back on subject) Mary Ellen Carter is a good candidate for most uplifting song, I'd probably vote for that if we were going to do something as alarmingly organised as voting.