I kind of have a villain to write up if not actually use too, honestly. ^^; One who uses weaponized classical music(hopefully not too similar to general sound stuff).

She's one of Blast Girl's villains, a "performance criminal". She's not really about the goal of the crime, and never kills anyone because there's no point if you want them to see your performance. She does, however, cause lots of property damage and theft in the name of her performances.