It's not that the tag needs to be present...we were expecting either the tag to be present with a value, or not present at all. In the song you sent me the genre tag was present but didn't have a value....and it can be any tag with this problem. This is what exposed a bug in media-monitor and what I fixed yesterday for the upcoming 1.9.5
Post edited by Martin Konecny at 2011-11-03 09:32:04