if you didn't already know, when punk sorta "died out" in the 80's, post-punk became a thing.
it's a pretty broad category, but typically they sound like punk songs, but they sounded broody, bass-heavy, and often made use of some electronic sounds, like synthesizers. the lyrics were sometimes not about politics either. you can think of it as the in-between of punk rock and goth rock, because that's what it was.
here are a couple of examples:
sods - roller ball
https://www.youtube.com/watch?v=MoLQtwgB-BM
red lorry yellow lorry - talk about the weather
https://www.youtube.com/watch?v=-pLxOMgbO1w
joy division - exercise one
https://www.youtube.com/watch?v=KRLTKdaPOFY |