This is great, and educational too! After playing quite a few rounds, I noticed I wasn't played any of the more esoteric categories such as '(free)tek(k)no' and 'french house' — seemed to most commonly fall on the bigger categories. Perhaps this is to be representative of the music landscape, but I fear that people won't hear enough of the lesser categories in order to learn from them.

I had fun, but one small criticism would be to speed up the time between rounds. The music quiz on the original iPod was a favourite time-waster of mine as a kid, and that was so addictive because it was quick to move to the next song.

Finally, if anyone is interested in a video walkthrough to the different electronic genres, this video helped me out immensely a couple of years ago: https://www.youtube.com/watch?v=B4r0MdBQI6U