May I just giggle and wiggle - really the folk I recall in Britain was more a case of roughly in tune - no instruments - people just got up and sang or if in a Pub they just go with it. Embellishments - he haw. It is better by far to have fun even if the melody wanders out of key and the vibrato is caused by the floor of the bar shaking from the passing traffic or train. Folk is about a living tradition - complete with soot diesel fumes hip hop rap and all that good stuff. The idea of Classical renditions of Copper Brother songs makes me sick. Sorry. This sort of silly stuff is typical of Colonial dreaming and it does not cut the cake! Irish embellishments are from my point of view overdone and often ruin an otherwise beautiful melody. Don't know what I am on about - wrong - am Irish also play trad all my life too. :)