Comment 2 for bug 737848

the error message:

Selecting previously deselected package mpd.
Unpacking mpd (from .../mpd_0.15.4-1ubuntu3_i386.deb) ...
[...]
Setting up mpd (0.15.4-1ubuntu3) ...
 * Starting Music Player Daemon mpd  * creating /var/lib/mpd/tag_cache...
listen: Failed to listen on localhost (line 69): Address already in use
Aborted

[fail]
invoke-rc.d: initscript mpd, action "start" failed.
dpkg: error processing mpd (--configure):
 subprocess installed post-installation script returned error exit status 134