I keep wanting to call UDÜSIC "feisty." If you wanna break down their riffs, then the songs are pretty straightforward, but the guitars are anxious, like they want to get the song over with so they can go drink or something...and Sarah's vocals want to be catchy but it sounds like she's too pissed to pull it off. Check the beginning of "Mature" (the whole song, really) - it's the laid back number on the demo but it's teeth are like fangs and the swinging guitars are more like the sound track to a knife fight. Also, the OUT COLD cover is next level sickness. I guess when I wanted to call them feisty, the word I was really looking for was "punk."