Does xmms2 have bindings either a Python API or a command line tool to find the album cover art of an MP3?
Related to xmms2 notification with album art under Awesome.
If you want a generic way to do that, that involves a single command or function, sorry this isn't it.
Assuming you know the location of the of the covers, for example
According to the wiki the name of the image file is calculated using the
You can replace