Well, is there a theory that the tune of Waltzing Matilda is a bit like the tune for Craigielea? From what I recall of the Craigielea tune there's no very obvious connection. But I havent heard the song for a while so I couldnt swear to that, maybe I just never noticed. Did Banjo Paterson say it was to be sung to Craigielea, perhaps? But I guarantee anyone would recognise the connection between W.M. and the Mozart piece, I'm sure whover came up with the tune must have had Mozart in mind, it's too close for coincidence. Tell us more, Jim.