I may be like herding cats but good one Alan! I'm in . I am in several organizatin that started informally ( you have to be careful about words like umbrella as people don't want to give up autonomy, so networks, alliances , supporters , group, organization are less threatening)and now are doing good work with a membership that has some representation and a committe and some clout.
Much as I understand unions and support them , I never really liked the Perform crowd as it felt like pros making a living and we were just seen as vehicles in the clubs. We called it 'Persons engaged in ripping-off folkies or related mugs' and it folded rapidly.
Would Harry Cox have joined or Scan Tester?