Hi Susan. My experience over thirty five years is that "Never the twain shall meet".

Now I'm not bad at gettin' folks to co-operate musically, but my experience has been that the old time frailer, the three finger banjoist, the fiddler (with a copy of O'Neil's under their arm) and the guitarist just bursting to play their newest composition CAN'T STAND to wait while the unaccompanied ballad singer delves into the mysteries of "Tam Lin".

Hell....it's hard enough to get the "frailer" and the "three finger player" to co-exist!

The most integrated Jams/circles that I've been a part of were made up of inexperienced or very 'part-time' players, who were much less likely to complain when wrong chords were played, or bad notes sung.

Cheers

Rick