Over the years there appears to have been some marginalisation regarding sessions. Musicians tend not to like sing a rounds because they have to wait their turn and they can't steam in and play along in every tune. Also the musicians have split into Irish , American, Old Timey, English etc. The singers have similar lines like Shanties, Folk Club, Sing a round etc. I have a friend who thinks this shouldn't be like this and we should be all one big happy family but I'm afraid she's in the minority cos in the main the session scene only works well when it is 'like minded' people. There you have the Gospel acording to MC Fat.