Free music software for linux

StepMania project is a music/rhythm game. The player presses different buttons in time to the music and to note patterns that scroll across the screen. Features 3D graphics, visualizations, support for gamepads/dance pads, a step recording mode, and more!
This release was done under totally different management and with different Windows and Linux builders, so let us know how it went.
Enhancements:
- Fix keyboard/joy mapping crash.
- Fix fail extra stage causes game over.
- Fix preview music in editor.
- Fix song edit crash when pressing v.

PyMusicD is yet another jukebox daemon written in python. It was born out of my frustration with the current mp3 jukeboxes, mostly the lack of features that I want. Ive also been playing with python quite a lot lately, and this is my first attempt at a large project in python.
The player is being written to satisfy my own requirements for a car mp3 player, although theres no reason you couldnt use this for a home mp3 player, or work mp3 player.
It assumes that your network users are (mostly) benign, and doesnt take a lot of precautions against malicious users who want to screw with your mp3s. Take appropriate measures to only allow trusted users to play with it, at least until I secure it a bit better.
Its primary purpose is to run in the background, and play mp3s whenever they are in the playlist.
Usage
Unpack this to its own directory. Edit the pymusicd.conf file to your liking. Run python PyMusicD, then run python pymusic to play around with it. The client operates very similarly to most shells, and includes tab completion for commands (but not arguments... yet.)
If you wish to install this to the system, you may do so by running python setup.py install. This will install the server binary in the default place for your platform (according to distutils.) You may then edit the config file (/etc/pymusicd.conf by default) and run the server by running PyMusicD. The cli client will be named pymusic.
This software is currently in development. It is not ready for end users yet. You should have familiarity with scripting in python before you set about to use this software. That being said, if you find bugs that arent listed in TODO, and/or have problems with the software that arent listed in TODO, email me (zwhite@darkstar.frop.org) and Ill see what I can do to help you. Code patches/suggestions are always welcome.
This is known to work on my Slackware 9.0 machine using the Python 2.2.2 package that came with it. I have also tested it on my Mac OSX 10.2.8 machine with Python 2.2. I have no reason to believe that it wont work on any machine with a Python 2.x interpreter and
either mpg123 or mpg321. Your mileage may vary. If it doesnt work on your platform, please let me know. My goal is to have this work on any platform that python runs on.
Enhancements:
- Fixed a bug when adding an entire directory with %2A instead of *
- Added a debug command to get server state, currently only playstatus is reported, will add more as needed.
- Changed the way the stop command works to eliminate a bug.
- Check to make sure a file exists before we add it to the playlist.
- We no longer start playing music as soon as the playlist has entries.
- Instead, we wait for a play command to be issued.
- Added config file support. Defaults to /etc/pymusicd.conf or ./pymusicd.conf
- Added a setup.py and setup.cfg file. Now users can install PyMusicD using the standard "python setup.py install" method that other scripts and modules use.

Siren is a music player for GNOME with an extremely minimalist interface. It is written in Perl and uses the GTK2-Perl libraries, and GStreamer.

Bluefunk is a music player for the Gnome desktop.

It is written in C# using the Mono platform. We use the GStreamer framework to play music, allowing Bluefunk to support a wide range of formats; including mp3, ogg, flac, AAC and others.

aeon is a music player that is meant to look nice and have an interface that is as easy to use as possible.

In contrast to BMPx it is entirely library based, which means you cant add individual files to it, but you have rather to add them to the library beforehand.

You can only play files from the library (akin to RhythmBox/iTunes).

BoomBasster is a music player that runs under DirectFB.

BoomBasster plays any type of music file that is supported by FusionSound.

The user interface uses alpha blending and works well with touchscreens.

BoomBasster is supposed to be used with the mouse.

Free Music Instrument Tuner is a musical instrument tunning application.
Main features:
- Error history
- Volume history
- Wave-length shape
- Harmonics ratio (Formants)
- Microtonal tuning (with Scala file support)
- ALSA support
- JACK support
- Translations for: francais