This version fixes the linking bug that have been extensively reported in a lot of Debian packages. This is where you are using symbols of a library from another but not explicitly linking to it. It means some versions of GCC will fail to link.
gjay will now create playlists for Music Player Daemon or mpd and get mpd to run them too. It does need for mpd and gjay to be on the same computer, or at least the same directory structure, so both programs know what file is. While gjay has a full view of the filesystem, mpd uses a relative one off its own concept of a root directory.
As a result of the two music players, both the audacious and mpd client libraries are not linked to gjay but are linked at runtime using dlsym(). It means you don’t need the audacious libraries if you like mpd or vice versa. I’m not that experienced in using dlsym so hopefully I’ve not stuffed it up; it works for me!
In theory, gjay could pass its playlists onto other music players. The problem is knowing how to get the list into the player. After it does its sorting and randomising, gjay ends up with a linked list of file-names. Now for audacious or (with some caveats) mpd it is pretty simple because they use file-names but others don’t do this. If you know how it is done with your favourite player then let me know.