m:sync is a command line tool written in c# that can be used to sync mp3s to the m:robe 100 mp3 player. it effectively replaces the proprietary mp3 software, m:trip and allows for more user friendly synchronization.
pyMP is short for python music player. It started out in 2004 as a command line tool for playing cd's. The scope of the project kinda grew and now it is a fully functional MP3 player with a GUI. Check it out :)
This proyect provides a GNU/Linux solution for managing the Freecom (www.freecom.com) Beatman Flash MP3 Player and Recorder. This is a user-space C application for uploading, downloading, etc. music files to the player.
First you must install the beatman driver (which also includes a command line tool), and next you can optionally install the gbeatman graphical user interface.