butt : butt is an easy to use, multi OS streaming tool ( http://danielnoethen.de/butt/ )
flac2all : A multi-process batch flac converter. For music lovers with large collections :-) ( https://github.com/ZivaVatra/flac2all/ )
furnace : a multi-system chiptune tracker compatible with DefleMask modules ( https://github.com/tildearrow/furnace/ )
vgmstream : vgmstream - A library for playback of various streamed audio formats used in video games. ( https://github.com/losnoco/vgmstream )
Add an ebuild in portage :
The ebuild is now in the portage tree.
You can also use layman : emerge layman then layman -a fol4
For Paludis use this rsync : rsync://gentoo.zugaina.org/fol4-portage
If you have a problem : ycarus(-at-)zugaina.org