I've done some major development on GMM this afternoon. The new database is in place and most of the old functionality has been restored. I also did some cleanup in the GUI code and also that is mostly working as before. Next step (probably tomorrow) will be finish up the clean up and restore everything to the old ways and start implementing the advanced tag editing. Note that flac and mpc is already in (which involved editing one line of code).
Hopefully tomorrow there will be a Goggles Music Manager 0.6.1!