It's a good idea, except as D-EJ915 said you wouldn't be able to please everybody's categorizations. Maybe just two or three forums for broad categories, like Classical, Rock/Pop, Other. The classical group might give classical-loving folks their own place to discuss classical, while keeping another two forums free for those who feel that discussions of classical in the main music forum makes it seem somewhat snobby at times and allow the classical listeners to discuss their music more freely. The rock/pop forum would probably be the most active since rock/pop includes most types of music discussed in the music forum now, including rock, pop (duh!), industrial, electronica, industrial, goth, etc. The other forum would be for everything else. This might be general enough. The main problem I see is actually too many categories as not everybody agrees with genre-categorizations.