Seven Champs? Whoop and holler? Surely not.
It's universal and seemingly random with border, varies with Molly.
I don't remember what Seven Champs do.
Gog Magog do a lot of shouting, carefully co-ordinated.
Pig Dyke, only very occasionally at specific points in certain dances.
Old Glory, only in one dance. And the "threatening impervious silence" is definitely an Old Glory thing too.