Moody? I bet you are.

There are other iTunes plug-ins that try to filter your music based on the mood of the songs. Most of them use some algorithm to figure that out. Moody lets you tag your own music based on two axis - Intense/Calm and Happy/Sad. Then you can create smart playlists based on mood.

I'm all for it, but with 13 thousand songs I don't have the time or patience to do it.