seven years,was often the period of time of transportation.
some of the broken token songs,are connected with transportation to Australia.
[But that isn't to say that they are valueless as songs. It really does mean though that when Brian gets in front of that class of kids - he surely has carte blanche to tell these people's story the best and most compelling way he can.

The only way we can dishonour the dead is by making them irrelevant and forgettable].
Isnt this what Bert was doing?.,by improving the songs,he is telling the story in the most compelling way,he is honouring all the previous song carriers and the dead,by making it interesting.
I find all this tut tutting about his scholarship,over sanctimonious.Dick Miles