The pub they meet in has a large free noticeboard. The folk club doesn't use it except to announce their fundraising ceilidhs. (The accordion and fiddle club doesn't use it at all). I'd been in the village a few years, and a regular at the pub, before we discovered the FC even existed - when we were told about it in a folk club in Bristol. Why on earth would you want to conceal your existence from everyone in your host village? How hard can it be to pin up a sheet of paper with the next few months' listings and a contact?

Publicity? That might mean that you get an audience who actually expect to be entertained.