Interesting project.
Will you be able to assign specific commands to the controllers buttons and joystick?
Then by using AutoHotkey you might be able to achieve something.
I'm not sure to what extend, nor how party-mode fool-proof it will be though.
(having MusicBee in locked-down mode will also help of course)
ps:
There is a (funny) misspelling in the subject title, you may want to correct it, or else ask a moderator to do it for you. Not important, but people doing a search for jukebox won't find this thread now.