the key to a good music taste headcanon honestly is just not projecting your own music taste onto characters. i don’t listen to nu metal, but jude perry definitely does. and if you do project, then it’s about knowing which aspects of your music taste to project. gertrude robinson would 100% listen to the taxpayers, but she would not listen to will wood. but annabelle cane might. and if a character is weird and unwell, you gotta reflect that with your headcanon. jonah magnus would listen to the stereosexuals