Oh, right! I know what a carn_y_x is. Didn’t think of it for some stupid reason, though.
The flute player is Tom Doorley! Original, founding memder. The girl was a late addition and was picked up for her singing but she’ a mighty player as well!
Right. I think the best one can do with the question is to point to various existing/past exemplars of different instruments, different numbers of instruments, and different players (with what they bring to it), and evaluate the results according to taste.
Is that anything like Carhorn? Why yes, I think it is! 
And no one has mentioned Guiness???
Best wishes.
Steve