multithreaded (Qt3 based versions only)

manages music files on harddisk/cdrom or over network

search the database by artist, song, album, filename...

very comfortable editor for ID3 tags

manages favorite artists

plays or enqueues music files with XMMS, WinAmp and a lot of different players

uses MySQL as database backend

configuration editor and database wizard

access files over SMB and NFS (Linux only)

playlist editor

support for MP3/Ogg/FLAC

access tracks by artist and album

support for different album types (normal, sampler, soundtrack, musical, drama, comedy)

basic drag-n-drop support (Linux only)

Microsoft Windows port (poor performance due to qt2 backport)

smart playlist generator

cd burning via k3b (supports Audio CD, Data CD, Data DVD) and prokburn

save GUI setup

localization

taglib support

guess tags from path and filename dialog using regex

musicextras integration (get album covers, artist images, lyrics, ... from the internet and store it within prokyon3)

support for embedded MySQL including wizard

personal review notes

rating of tracks

generator takes care of rating

allow customized SQL queries (free MySQL search) and store them

export and import playlists (m3u and pls)

copy tracks to directory (useful for mobile mp3 players)

preconfigured for several popular players (xmms, amarok, totem)

Mixxx remote control and Mixxx queues

basic MusicBrainz support

supermount and submount support

album cover thumbnails

utf8 support

64bit platform support