Yes why couldn't I just say that?

Those that wish to control more than just getting folk in the same place and at the same time, I think are missing the point. For there really is nothing to take over, just to something to contribute to. You should always be prepared for the dynamics to be different.

Build it and they will come.

Then what happens will happen and you can either go with it or leave. All levels of expertise are needed, to encourage and be encouraged.

Those that are so accomplished that they cannot be encouraged or are not prepared to gently encourage others, except by displays of their personal brilliance should not attend but stick to performance.

It probably works better with people present as individuals rather than arriving in groups. A single newbie arriving will not be seen to present any serious threat to the established order (or disorder) and can be assimilated much easier than a group.

In my experience the best such events are one-offs, usually at festivals. This is due to their being comprised of musicians largely unknown to one another and taking place on neutral ground. The emphasis can then be on the music rather territorial disputes.

The challenge is to try and introduce thse elements into regular sessions, can it be done?