Pessimistic Songs?

[immel]

I don't think that actual pessimism has very much to do with simply being unhappy, heartbroken, ruined, etc. It's more when you are, and try to make yourself a martyr. I don't know.

pessimism

1. the tendency to see, anticipate, or emphasize only bad or undesirable outcomes, results, conditions, problems, etc.
2. the doctrine that the existing world is the worst of all possible worlds, or that all things naturally tend to evil.
3. the belief that the evil and pain in the world are not compensated for by goodness and happiness.

For example, Moments, while it certainly is about being unhappy, she isn't really talking about it in a pessimistic way.