Hi Duane... As long as I'm checked in for the moment. I'd have to answer your question by saying everyone stretches octaves one way or the other... Its just a question of how much. We can not escape from the fact that an <<octave>> in the piano is comprised of a whole slew of 2:1 relation overtones. 2:1, 4:2, 6:3, 8:4 etc. These mesh together one way or the other no matter what your gut feeling sense of what is right or not tells you. "Stretch" per definition is really nothing more then what balance of these, or what accent your place on one or more of the coincident orders. You could, I suppose call it "Squeeze" instead as it amounts to the same in reverse. A well tuned piano is nothing more then how well the tuner executed/achieved his/her conscious tuning objectives... which more or less precepts the tuner is conscious to begin with. An ETD is so in the sense that the pre-programmed parameters reflect the programmers conscious tuning decisions. To some degree the ETD user can influence this by what tweaks he/she imposes on the ETD. And in the end an aural final pass can be significantly reflected in the end tuning if the tuner knows intellectually exactly what he/she is after and how to go about achieving it. jmtc Cheers RicB
This PTG archive page provided courtesy of Moy Piano Service, LLC