I've installed Subsonic on my mini-pc, running Ubuntu 12.04, in the living room. It's plugged to my hifi system, and I'm really happy with that

Most of the time, I set the music in the living room from my android phone, using the jukebox mode.
It seems the jukebox mode kind of "hijacks" the audio, since while music is playing, I can get no other sound (movies).
I have to stop the playback on the android phone to have the audio back on the mini-pc.
And the other way around too : it seems that when the sound card is being used by any application, the jukebox mode produces no sound.
All this, however, is no real problem since I rarely watch a movie while listing to music ( :) ).
The problem is that I'd love to be able to manage the jukebox from the host machine directly. It seems quite logical to be able to start/stop music or kick clients from the host machine.
Right now, it seems that if I had launched a long playlist from my work, and forgotten my phone there for the weekend, I'd have to listen to that playlist for the whole week-end without being able to do anything else.
Is there a way to do what I want ?
Thanks for the great work !
PS : Besides, that "audio hijacking" works in a very inconsistant way. Sometimes, stopping the music from the android app restores the other apps' sound, but sometimes not.