I play in a "Song Circle" with the Harbour Folk society at the ferry terminal in Dartmouth Nova Scotia each Wednesday evening. We have been there about 3 years and I started 2 years ago.
We need all of the musicians who show up. There have been times when there was just me and one other member. She doesn't play an instrument, I play mandolin. Last night we had a nice session with 7 participants. We also had an audience moving through during the 2 1/2 hous that we were there.
Since I started in this, my first public venue I have had to adapt my playing to accompany instrumental and voice presentation in virtually all keys. For my part I believe I have grown a great deal because of the times I have been out. Work has recently kept me from it, but for now I am back at it.
I would like to say that there is no problems with our group. There is some music which I do not try to accompany, but for the most part we all try to act as a session band no matter who's turn it is. We have become friends through this. If you like someone, you should overlook their little faults. I hope the others do so with mine.