DerMixD is an audio mixing and network-listening daemon that is similar to mixplayd but quite different in its implementation. It supports the playing of music files on a run-time configurable number of input channels, mixing them together and producing output on a run-time configurable number of output channels. It is controlled over a TCP socket and supports scripting, gapless playing of tracks, including filtering of null samples from padding, use of mpg123's equalizer, flexible input/output connection, changing playback speed, and more.
PyGogear is a tool for using the Philips GoGear MP3 players under Linux. The GoGear Philips xHDD0xx and PSS115/7 series of MP3 players can be mounted with the usb-storage module, but merely copying MP3 files onto it is not enough, since the player needs to read information about the tracks from a Sqlite database file, usually named MyDb. This program reads the necessary tags (either ID3v1 or ID3v2) from the MP3 files placed on the player and inserts them in the database. M3U playlists are supported.
XMMS2 is a redesign of the XMMS music player. It features a client-server model, allowing multiple (even simultaneous!) user interfaces, both textual and graphical. All common audio formats are supported using plugins. On top of this, there is a flexible media library to organize your music.
Cactus is an audio player. It shows all your music files in a kind of database, and you can easily browse, edit, and search your collection. It also supports synchronizing your music collection with a mobile player device. It plays MP3, WAV, and Ogg. It can also import and rip audio CDs, automatically show album covers, tag MP3 files, and maintain a fast library. A GTK 1.x binary is also available.