Unfortunately unless it is a critical music ticket, it will have to be put on hold. The limited amount of developers Boxee has means they have to focus on what (they feel) is most important. And they believe video is more important than audio (and i would wager a majority of owners would say the same thing).
Avner said in that web interview I think that music and the visualizations will be reevaluated and changed once they feel they have the bugs and content partners sorted out. So it seems like it will be while
Boxee Box owner, lover, and enthusiast!