I'm not sure why the need to draw a firm distinction between the two. I'm quite focused on lyrics if they're present and in a language I understand. I'm not fussed if they aren't.
If you find the music in some way engaging, that's enough. Denigrating other music as in some way lesser than your preferred genre is odd.
I'm surprised by anchovies lacking it but you appear to be correct, even for raw anchovies. I tried looking at a handful of other raw fish and they also have no vitamin C.
I guess that makes sense, if fish could supply vitamin C I can't imagine scurvy would've been a problem for long.