OpenDJMix is a virtual DJ system which allows you to mix MP3 files and audio CD tracks. It consists of a C++ API that manages a virtual sound bus with its I/O and a Qt GUI that enables a user to mix 4 MP3 or audio CD tracks. The API has been designed to be used in all multitrack sound tools.
MobileMpd.Net is a small program that can be used to control a MPD (Music Player Daemon) server using a WiFi enabled Windows Mobile device. The software supports the start, stop, next, prev, repeat, and random functions, volume control, playlist addition and removal, and a music directory treeview.
MediaZoo is an online personal media library and player that allows users listen to their music and invite close friends to their music room. Its mission is to allow users, musicians, and developers to start collaborating on creating a unique, open, and free music experience in the cloud.
dudl is a collection of tools to grab, encode, and rename MP3 files, archive them, and maintain a database of all files. On top of this runs the dudld Jukebox daemon that plays your files through gstreamer. dudld's strengths are the powerful tag based filters, the capability to cope with very large collections, and the network protocol to control its operation. There is a full featured command-line client, a minimalistic GTK client, and a lirc client. Writing new clients should be easy with the supplied client libraries.