Waitaminute. Where did this come from?
For some reason when I started up Audacious the other day, I got this instead of my standard Winampish-throwback audio player interface.
Not bad, really. It seems to have all the same points and arrangement as the old style of Audacious, just in a way that makes it look like a regular GTK-based desktop fixture.
And it’s not out of place for being completely unlike any other music player since 1998. I used to use AlsaPlayer a lot, for much the same reason: It looks remarkably like the old Windows Media Player 6 (or whatever it was).
And there’s still Potamus to use on machines so slow that almost-no-interface is the best solution.
In any case, I have vocalized my surprise and relative amusement at this interesting addition, so this post can now end. 
I’ve been loving the GTK-layout by audacious for some months now, but as far as I know it’s still possible to have the old winamp look, themes and all
it most certainly is possible to get it looking just like the old default. Just check under the ‘View’ menu.