Unfortunately I am not a word aficionado nor a trivial pursuit guru! I got to the final two in round 5 and had no idea what half of the words were. :)
Everything works well, I'm sure it's funner for smarter people! I do like that some words can fit into multiple categories, so you need to be careful that you aren't throwing one into a place it fits but which will leave another line missing an answer. I'm not sure about instantly locking a row the moment it's complete, it does allow for trial and error which feels against the spirit of the game, but I suppose having some sort of 'Check' button would interrupt the flow.
The music is nice, I've used songs from Alexander Nakarada in the past. :)