And it's compatible with winamp skins, so you can download the winamp base skin ( https://skins.webamp.org/skin/5e4f10275dcb1fb211d4a8b4f1bda2... ) and have it look exactly like winamp.

XMMS1 source code is also still around https://github.com/csepulveda/xmms1

..and XMMS2 apparently had a few recent releases https://github.com/xmms2/xmms2-devel