Well, a lot of the songs have to be sung in dialect or they don't rhyme - at the very least they lose a lot. I got up the nerve to actually sing a Scots song at a traditional singing competition in Girvan, Scotland - I'm American, by the way! As I was waiting for my turn I was thinking to myself "You must be out of your mind - why didn't you pick a different song - you're going to be singing a Scottish song to Scots and they'll probably laugh you out of the room". But I'd already registered (it was kind of spur of the moment)and put down the song I was going to do. Well, I got up and did it and it was very well received - nobody jeered and the audience was quite appreciative. I didn't win the contest, but I was glad I attempted it. One gentleman did very nicely correct a mistake I'd made in pronunciation but not at all in a critical way - more to help me out. Since then I've been back to Scotland three times and I have to say that I find most Scottish people to be very, very gracious and I don't think, if they felt you were sincere, that they'd criticise you for trying to sing in Scots. After all, it IS almost a distinct language in its own right. As long as you have respect and it comes through, I think you'll be okay.