cue2tracks : Bash script for split audio CD image files with cue sheet to tracks and write tags. ( http://cyberdungeon.org.ru/~killy/projects/cue2tracks/ )
eko : EKO is a simple sound editor. ( http://qt-apps.org/content/show.php/EKO?content=136558 )
exaile : a media player aiming to be similar to AmaroK, but for GTK+ ( http://www.exaile.org/ )
gayeogi : A fully-featured music management suite. ( https://github.com/KenjiTakahashi/gayeogi )
gcue2tracks : Tool for spliting audio CD image to tracks with cue sheet info. ( http://trac-hg.assembla.com/gCue2tracks )
qloud : Tool to measure loudspeaker frequency and step response, distortions' SPL and so on ( http://qt-apps.org/content/show.php/QLoud?content=57174 )
yarock : Yarock is Qt4 modern music player designed to provide an easy and pretty music collection browser based on cover art. ( http://qt-apps.org/content/show.php?content=129372 )
Add an ebuild in portage :
The ebuild is now in the portage tree.
You can also use layman : emerge layman then layman -a arcon
For Paludis use this rsync : rsync://gentoo.zugaina.org/arcon-portage
If you have a problem : ycarus(-at-)zugaina.org