“So when you are working with games or heavily structured improvisation, the Europeans are really quick to pick up on that and to really be able to do it within the structure. When you get into sort of looser forms like the Harold or things. like that, at least unstructured Harold, it is a lot harder to get them to cut loose to sort of be free form. It is very difficult sometimes. But there is a desire on the Europeans’ part, particularly the Germans, who tend to sort of be about rules, to really adopt that. I think that is one of the things that really appeals to them about improvisation and long program improvisation in particular the desire to be free, free of these rules and still be able to tell a story, whereas in America or in the United States in particular, it is the opposite.”
Randy Dixon
http://ir.lib.sfu.ca/retrieve/2104/etd1733.pdf
Germans and rules