Random, but I decided that I wanted to play around a bit and see if playing certain music would change the mood of the game I was playing. So I decided to play Left 4 Dead while listening to some happier music. I had to turn off the music as soon as I started playing. It just seemed all wrong and I couldn't focus and I just started laughing. So I'm wondering, has anyone else done anything like this before? Trying to play music that has an opposite feeling of the games? How did it work out? Or do you ever have certain things going on when you play?