CoverGrid (mcg) is a client for the "Music Player Daemon":http://www.musicpd.org (MPD), focusing on albums instead of single tracks. It is not intended to be a replacement for your favorite MPD client but an addition to get a better album-experience.
For testing the application and running it without (system-wide) installation, donwload/clone the code, build it as described above and then use _setuptools_ to install it for the current user:
Since MPD itself does not provide the cover/image/album art binaries, yet, _mcg_ has to look for them itself. In order to find the images a base folder has to be configured on the Connection tab as “Image Directory”. This value can either be a local (absolute) folder (e.g. /home/user/music/) or an http URL (e.g. http://localhost/music/). _mcg_ then adds the (relative) folder of the audio file to this paths and tries different names for the actual file:
# the album name
# “cover”
# “folder”
The following file extensions are used:
# png
# jpg
The first combination that results in an existing file is used as cover image. If no matching file exists, _mcg_ will try to traverse the directory for any image file as fallback—this is done for local paths only though, not for http URLs.