WHen I'm depressed i try to listen some songs which have slow music and pretty lyrics. But which songs i listen to change really fast. Present I really like songs "Breathe in, Breathe Out" by mat Kearney, "Save you" by Matthew Perryman JOnes...and my fave song ever "Things will go my way" by The Calling - it really makes me better.
When I'm mad i choose heavy songs of bands like Nightwish or Within Temptation, or Placebo...something like that...