My view on this is that the music shouldn't be played on the server voice... why....
A) Uses bandwidth
B) Not everyone likes it
C) Music gets distorted to shit and then becomes a disrespect to the music
D) Much better options....i.e. set up a shoutcast server on your pc if you want to stream audio to friends....lol
E) VERY FUCKING LOUD ...ESPECIALLY IF YOUR NOT EXPECTING IT