MPD_sima Automagically add titles to MPD playlist.

MPD_Sima is a Python script meant to feed your MPD's queue with tracks from
artists similar to your currently playing track, provided that these artists
are found in MPD library. Similar artists are fetched from last.fm.  MPD_sima
can queue track, top track or whole album for similar artists.

This client allows you to never run out of music when your playlist queue is
getting short.