In my experience, as I have said in another thread, I find that singing sessions are elitist. Everyone can join in a tune session even if its just by clapping along, but not so with singing. Singers demand respect and quiet (as it should be) but will talk all the way through a set of tunes. Its just basic good manners in't it.

(And before anyone bites my head off this is from MY 44 years of experience in the fok world and I am sure is not everyone's experience nor am I condemming anyone!)