Johnny J,

On the session subject, of the three current ones that I'd sometimes (I don't get out much at the moment) get to, one is pretty strictly no songs and fairly "serious" Irish traditional. Another is mostly Irish, can take the odd song and is a touch more "relaxed" in terms of what fits. The other is more sing/tune around with things passing round the room.

There can be a lot of debate about divisions and restrictions but my own view is that I appreciate the variety available and think it is good that people and find their own more "specialised" niche if that's what they are after or go for the more general - or as, in my case, manage to feel comfortable in more than one type of setting.