Sorry, clone might not be the right word here. Foobar2000 was created out of spite because the creator didn't like what Winamp was doing. I vaguely recall something about bitrate limits and ogg support? It was so long ago and on IRC so no history saved. So it's a replacement?

Edit: some more context here:

https://forums.winamp.com/forum/developer-center/winamp-deve...

https://www.reddit.com/r/software/comments/lqu9u/a_brief_his...

> foobar2000 was first released in 2002 and developed by Peter Pawłowski, who had previously worked at Nullsoft and developed plugins for Winamp. He created foobar2000 with the audiophile community in mind. The software's mascot and logo icon consists of a white "alien cat".

From https://en.wikipedia.org/wiki/Foobar2000 . It has WinAmp's DNA somewhere in there, and IIRC it was kicked off soon after AOL had bought WinAmp/Nullsoft.

Winamp clones for Linux/BSD began with X11AMP, later XMMS, which had a huge amount of plugins, similar to Winamp. Then XMMS was forked upon the GTK2 release with Audacious and another one I can't remember its name.