Well, it's called RESEARCH
A word I know too well and have started to hate. I have one of my main characters as a punk rock fan. Real punk rock from the 1970's not this bulldren stuff that has come out in the last few years calling its self punk.
Only issue is, I can't stand music from the 1970's. I just can't stomach it. Punk or Disco or the "classic metal" . Just not my vibe. But, it works for my character. So apart from sampling 40 seconds of songs, I don't know what else to do.
I can't just say he's into that and only give the traditional few group names (Sex Pistols, Ramones) cause that would be a total bogus cop out.
And I have tried changing my character's music taste to 80's New Wave, but that nagging little voice that all writers have that tells us when we're being true to a character screamed at me that it has to be Punk from the 1970's.
When all else fails, I guess I'll go listen to some Blondie. (she was 70's right?)