It seems like my department hasn’t received the newest edition of the Computer Music Journal, but I had a look in the edition for Winter 2007.
There were a few interesting things.
The introduction mentioned a study into how different intervals sound consonant or dissonant because of the interference patterns that are created in the cochlea.
There was also an interesting article: Paul Nauert, Division- and Addition-Based Models of Rhythm in a Computer Assisted Composition System. Sadly the articles don’t seem to be accessible from the website, but I will have a go later through the Royal Library’s remote connection system. 🙂