It would be nice if Audacious kept a track/history of all played tracks in the following format:
Date started playing (Unix TS):Date stopped playing (Unix TS):Track ID (tag):Track URL
#1 Updated by Sylvain LABOISNE over 2 years ago
I did a small script to handle that, but it's a standalone script (in bash), you need to launch it along with audacious. It keeps and update in a text file the informations, and use a popup to notify when a new song plays (not when changing songs). Better than nothing.
Maybe someone could make it as plugin or make it better.
If interessed in, I can post it here.