Can I add that my then boyfriend and I journeyed about in his old Morris Traveller car to and from Celtic matches, often to Glasgow for the Rangers/Celtic derbies (as he was a Celtic fan) and we always ended up in a Glasgow bar where all the folk songs were belted out. And the same ones were sung again and again, and nobody groaned or rolled their eyes! Firstly, I think this would have been very rude, and secondly the people loved the familiar songs, no matter how many times they'd heard them. Things must have changed nowadays, if audiences are so unreceptive and discourteous as to groan at a singer. Surely, by definition, a traditional FOLK song is one that has been sung over and over down the generations, by all present. It's the modern disease of always wanting something NEW that makes an audience behave in this deplorable fashion I suppose.