Was the Rule of 18 Good Enough?

2017
AL#130 p.52               
R.M. Mottola                                                                                           

▪ Did ancient folk know what they were doing? Or did they just have the bad luck to be born too soon? This article can’t settle that question definitively, but it does give some new and helpful information for luthiers. Graphs compare the pitch accuracy of fret scales calculated by the 12th-root-of-2 method vs the Rule-of-18 method. Appropriate string length compensation is considered.