Installing PlaylistBuilder to create MPD playlists based on similar artists via Last.FM.
A little ruby script that uses Audioscrobbler to append songs from artists similar to the one you're currently listening to the current playlist. @http://mpd.wikia.com/wiki/Client:Playlistbuilder
sudo aptitude -P install ruby rubygems ruby1.8-dev libopenssl-ruby
wget --no-check-certificate http://tinyurl.com/playlistbuilder
wget http://rubyforge.org/frs/download.php/15722/librmpd-0.1.1.gem
sudo gem install librmpd-0.1.1.gem
sudo gem install scrobbler
