Corte writes: << Then, after I did the best job I could on the temperament, I would check each note and see what the cents offset was on the Verituner. This was very helpful in sharpening my aural skills. You can do the same with unisons. Set a three-string unison the best you can and then use the ETD to measure the relative differences between the left/center string and the right/center string. >> I don't trust the machines to tune unisons. They cannot distinguish phase differences, nor the effects of coupling at the bridge. When I tuned a piano's worth of unisons strictly by the machine, there were perhaps 1/3 of them that didn't sound like the rest, even though the machine said that those unisons shared identical partials that had been measured. In order for me to get all my unisons alike, I have to tune one of the three strings aurally, after I have set the other two. There are just too many variables in three imperfect "generators" trying to agree for a machine to get them all the same. Regards, Ed Foote RPT http://www.uk-piano.org/edfoote/index.html www.uk-piano.org/edfoote/well_tempered_piano.html <A HREF="http://artists.mp3s.com/artists/399/six_degrees_of_tonality.html"> MP3.com: Six Degrees of Tonality</A>
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