Add this to your /etc/apt/sources.list, then apt-get update;apt-get install beep-media-player. Dunno who's doing those packages, I just figured it out from the url here on freshmeat.
deb http://luon.net/debian unstable main
GTK2 xmms port
I messed with this for a few hours tonight - finally got it to work :) - this must have been built against XFree86 4.1.0 because it kept looking for libXxf86vm.so - doesn't exist in at least my version of XFree86 4.3.0 so I worked around that - I also did a work-around so that this can be built and installed alongside the "normal" xmms for GTK+ without over-writing any files - and I also built RPMS for Red Hat (note: built on RawHide so I'll just give the SRPMS link):
An open, cross-platform journaling program.
A scientific plotting package.