Go to your track manager. Some things have changed, and please test if it works.
I've added Genres, when you upload a track.
To update your current tracks in the Track Manager, select your track in the playlist, and click Edit. In the editor you can now select the track genre. If you hover over the genre name, you can read a description of the genre (note: this does not work on Chrome)
I've only included main electronic genres, and a few alternatives. If you think a genre is missing, please let me know here.