I'd tune the central three octaves without stretch at all.
Then below Tenor C tune perfect 12ths. So if the Accutuner allows
manual note choice, as soon as you go down to Tenor C, reset the tuner
starting at A440 and move down note by note to F#. You tune that B
below Tenor C to that F# below A440 and go down from there. This is
effectively tuning the 3rd harmonic to the scale note and this will
put the inharmonicity right all the way down. After tuning C above
A440, take your tuner to the octave above and play that C above A440,
effectively tuning your tuner to the 2nd harmonic. This will give you
the appropriate stretch setting for the octave above the C above the
A880. You can do the same for the octave above that.
The original ETDs available in Britain in the 1970s operated that way,
with calibration for each of the higher two or three octaves, and
worked well. Using this scheme you'll be able to set both instruments
adequately the same without excessive deviation.
Best wishes
David P
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David Pinnegar, B.Sc., A.R.C.S.
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+44 1342 850594
Original Message------
I have a concert coming up to tune a Steinway M and Steinway B for Face 2 Face, a tribute to Billy Joel and Elton John with a backup band. I would like to use my SAT III for the tunings as it is a very robust day on my calendar and would appreciate anyone who has tuned these two pianos that might be played together using a SAT if you have any tuning tips from your experiences on offsets and stretch numbers used for pop music.
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Kevin Magill
Williamsburg VA
757-220-2420
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