PlayJoom is a web based audio streaming server. It´s written in php and save the data about the audio files like mp3 music in a MySQL database. You can stream your music files, manage covers, and additional informations about the music band, the tracks or the albums. You manage your own playlists with your favorite songs and listen it everywhere in your local network on each device. PlayJoom streams audio files in your lokal network, or with a internet web server world wide. All you need is a webserver like Apache or Microsofts IIS an a MySQL database server. You can play the audio files direct in the most web browsers on a PC, on a Mac, or on mobile devices like Android or iOS cellphones or tablet devices. But it's also possible to play the musik with a musik player, like the open source application VLC, or the Windows media player. PlayJoom is released with the GNU - General Public License. So, the PlayJoom application is free software. The basic of PlayJoom works on a Joomla! core. A really great cms and of course also an open source project.