unfortunately, mpd network protocol doesn't allow to retrieve this
information. but that's not really needed, since all mpd commands are
assuming a path relative to mpd root...
cf:
-
http://mpd.wikia.com/wiki/Protocol_Reference
-
http://mpd.wikia.com/wiki/MusicPlayerDaemonCommands
if you find a way to do it, i'm more than willing to include it in
audio::mpd. remember though that reading the config file is not allowed:
mpd server can be on another machine. so it should be done through the
network protocol.