I've been listening to a lot of Steve Reich lately and I'd like to bring classical minimal music into my improvisational group. I am familiar with jazz, rock and classical improvisation techniques.
From my understanding minimal music is composed ahead of time (except for folks like Terry Riley performing solo on keyboards).
What techniques could be used to created improvised minimalist music in a group setting? I can see how the polyrhythms could be done but how to coordinate and compose in the moment miminal music techniques such as slow modulation of one or more parameters as well as phase and pattern music, including repetition?