Taking this a little further, whilst most folk enthusiasts in England have a clear idea of the differences and etiquette between the words 'singaround' and 'session', it occurs to me that there are people in different areas and newcomers who are not fully aware of these differences.

Having read the whole thread it would appear that some of the problems here stem from the two words having different meanings to different people. Perhaps it is time we started thinking about a new set of words to cover the several different types of occasions when people meet together to sing and play.