Thanks for the info.
I have seen company switches before which were basically 200A or 400A safety switches with camlock receptacles. But these were indoors for theaters.
I have no idea the power requirments of a band. In my case bands that would play n the quad of a college.
It sounds like band distribution panel has camlock connections. I was planning on a 100A 120/208V 3 phase grounded receptacle with a disconnect (actually two because that is what my town stage has) located pretty close to the "stage".