The reasoning behind this seems to be that the Last.FM API was becoming a little too much to maintain which I suppose is fair enough in its quest to remain just a music player i.e. not a screen-hogging iTunes clone like so many others.

Heres how to put Last.FM support back into Audacity.

I’m going to assume you are a sensible person and using a Debian based system rather than Fedora. If you are one of these hat loving deviants, substitute ‘yum’ for apt-get below and feel free to voyage though the countless pains required to get Yum to actually do its job.

Installing LastFMSubmitD

I’m not sure on the capitalization of the daemon process LastFMSubmitD so that might be the wrong name entirely.

Anyway, first install pretty much the only component we need:

apt-get install lastfmsubmitd

OPTIONAL – Set up the HTTP_PROXY

For some reason the daemon does not get proxy details right. This is easily fixed by opening /etc/init.d/lastfmsubmitd in your favorite editor and inserting the following line somewhere near the top (I put it after the ‘GROUP=’ line which should be the last bit of the daemon config area).
If you have no idea what a proxy is or why you should be doing this you can probably skip this section.

export http_proxy="http://whatever.stupid.proxy.edu.au:8080/"

Parse Audacious output

Dump the following script somewhere you can find it. For this example I will use /home/user/bin/scrobble

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#!/bin/bash
if [ ! -x '/usr/lib/lastfmsubmitd/lastfmsubmit' ]; then
	echo "LastFMSubmitD does not appear to exist on this machine"
	echo "You can install it using Apt or Yum"
	exit 1
fi
if [ "$#" == 0 ]; then
	echo 'Usage: scrobble "<artist> - <song>" "<length>"'
	exit 1
fi
 
ARTIST=${1%% - *}
SONG=${1##* - }
LENGTH=$[ $2 / 1000 ]
echo "ARTIST = [$ARTIST]"
echo "SONG = [$SONG]"
echo "LENGTH = [$LENGTH]"
 
/usr/lib/lastfmsubmitd/lastfmsubmit --artist "$ARTIST" --title "$SONG" --length "$LENGTH"

Pointing Song Change at your script

First make sure you have the Song Change plugin enabled in Audacious first.

Now point the command Audacious is to run when starting a new song at the script in the following way:

/home/user/bin/scrobble "%s" "%l"

All done. Now any tracks played via Audacious will be passed to the script which will parse the incoming song title into a format that the LastFMSubmitD daemon can use.