The complication is that people tend to have different definitions of what kind of issues belng on a left right spectrum. Some people seem to place just about everything on that spectrum, the music you like, the clothes you wear, the food you eat...

I prefer to think left right should be limited to a realatively few issues, mostly to do with economic issues. There are of coure other spectra on which we can place our opinions and so forth -- authoritarian/ libertarian, religious/ atheiist, and a few more. But I think it's healthier to keep the different spectra separate, and realise that just because someone is close to us or far away on one, it needn't carry over to the others. It's perfectly possible to be extremely religious and extremely left, and equally to be extremely anti- religious and far left, and so on.

Separating things out like that tends towards greater tolerance, I feel, mixing them together makes for bigotry, wwhich can ccrop up just about anywhere.
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As for folk music and left right, I always like to remember something I read that happened while they were getting together to commemorate the bicentenary of the French Revolution. Apparently they wanted to set up a big traditional music event, with loads of traditional musicians frrom places like Brittany. But when they got them together and explained what it was about the reaction wasn't what they expected. Celbrate the Fench Revolution? For.many Bretons the French Revolution still has the same kind of historic meaning as tye English Revolution still has in Ireland, for the same kind of reasons.