<html> Hi ric,             Cutting edge technology of the day, love the loose use of the term ET. One wonders if he would flip, if he could hear our ET, and complain there is no key colour?????? Roger At 07:32 PM 9/28/02 -0500, you wrote: <blockquote type=cite class=cite cite>Below is from James Broadwood in 1811---the sequence for tuning ET  "From whatever tone the tuner begins, it is still the practice, as in the old system of temperament, to the end the succession of fifths {tuned up from the starting note} at G# and those {tuned down} at Eb, whereby the  inequalities arising from careless or defective divisions are thrown into the key of A flat; with this view I prefer tuning from A{4} the second space in the treble clef as being less remote from these two finishing fifths; ..the A being tuned to the fork, tune A{3} below an octave, then E{4} above, a fifth; then B{4} above a fifth, then B{3} below an octave, then F#{4} a fifth above, then its octave F#{3} below, then C?{4} its fifth above, then G#{4} its fifth above, and then G#{3} its octave below.  We then take a fresh departure from A{4}, tuning D{4} its fifth below, then G{3} its fifth below, then G{4} its octave above, then C{4} {middle C}  its fifth below, then C{5} its octave above, then F{4} its fifth below, then B flat{3} its fifth below,  then B flat{4} its octave above, then E flat{4} its fifth below."  "If the whole be tuned correctly, the G sharp with the D sharp, (which is the same tone on the piano-forte as E flat) will be found to make the same concord, that is, possess the same interval as the other fifths." For those who find this difficult Broadwood offers....        "Those who after giving this method attentive trial, are still unable to satisfy themselves may have recourse to a set of twelve forks correctly tuned, to twelve semitones.".  "Some gentlemen who have made trial of this mode have written to me that they have succeeded beyond their most sanguine expectation, and find themselves competent to put their instruments in better tune than they could before get done for them in their neighbourhood." ---rm _______________________________________________ pianotech list info: <a href="https://www.moypiano.com/resources/#archives" eudora="autourl">https://www.moypiano.com/resources/#archives</a> </blockquote> </html>