Anders Friberg and his music group team did something along these lines at the KTH in Sweden. Manipulated variables in MIDI-programmed music to make it sound happy, sad, etc. by different degrees. Maybe you can use his variables to do the opposite and 'read' the mood from music rather than create it.
I'm not as familiar with it as I'd like to be, but you can look it up on his webspace, http://www.speech.kth.se/music/staff/andersf.html
Hope it's helpful,
From: Luis Diez <luised.diez@xxxxxxxxx>
Reply-To: Luis Diez <luised.diez@xxxxxxxxx>
Subject: music mood
Date: Tue, 25 Jul 2006 13:41:30 +0200
Hi Everyone,This is my first post to this list, I hope this issue hasn't been spoken about in the past, although it didn't show up in a search of the archives.My name is Luis Diez, I am a doctoral student in the Universidad Rey Juan Carlos (Madrid, Spain) in the economics department.I am looking for models or software to analyze music and somehow 'calculate' a measure of its' mood (maybe following Thayer's model?).Would anybody happen to know whether this exists?Thanks in advance,Luis