[r-t] proving a touch

Ian McCulloch ianmcc at physics.uq.edu.au
Wed May 21 08:02:41 UTC 2014

On Wed, 21 May 2014, King, Peter R wrote:

> I guess it depends on what you mean by True.  I think John Warboys has 
> basically answered the question. If the only criterion is that no change 
> appears more than twice then yes it is true to Cambridge. I sort of feel 
> that I would expect a quarter composition to have all 720 changes plus 
> 552 (or whatever number) changes repeated once only. That's a stricter 
> criterion than applied here. On the other hand for quarters I probably 
> wouldn't be so picky as for peals.

I think, for cambridge though, that it does contain all 720 rows, as well 
as no rows appearing more than twice.  So I don't know what the footnote 
is supposed to mean.  What other criteria could there be that it fails for 


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