Twaddle?Jack stop tying to muddy the waters,
I am referring to ukelele groups, the music is simple and can easily be memorised if practised regularly, the same applies to tradtional itm tunes they are best learned aurally mistakes can be turned into variations, that ispart of the art of performing irish trad tunes you never play the tune exactly the same.
ukelele groups would be also better off picking up the tunes by ear, develop the musical ear and performers can pick things up on the fly[bring back Michael Gill], a good way tpo start is twelve bar blues for developing the ear, Jack you know you are talking bunkum