I doubt it was about folk music. Rather they said, "Community Standards," with no details and also provide no way to offer a defense if you knew what community standards were violated, which I do not. Rather I have a Juris Doctor degree, and graduate credits in Constitutional law, and have testified on issues of the law and human rights. I believe the Trump administration is attempting to limit the ability of experts to comment on their criminality. However, FB is a perfect environment for censorship, as there is no way to challenge complaints, if you don't know what was said was the wrong doing.
By the way, my work in law was often at the core of my folk music which often paid for my advocacy. =-)
Dear Stilly River Sage: No warning, no previous complaints. As to the Museum site, theater and bar sites, they are still up, but I can't access them of course, and COVID disaster profiteers killed those institutions anyway. Genie and I went from three businesses worth millions and a town house, to homelessness, which we are now attempting to climb up from. We now have a roof over our heads and are trying to make it as permanent as possible in a nation where the working class are simply food for the canabal rich.