Offhand not really; discussions about math and music from the math end tend to either be very dry and technical or quickly tilt into pseudoscience, and good musicians (of which I am not one) tend to look at the math as an interesting curiosity, but only for as long as it takes to get a handle on some new compositional technique.

http://electro-music.com/forum/index.php is the best place I know for serious-minded discussion of the interface between math and music, though it's (surprise) heavily geared towards users/designers of synths and sequencers.