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>> This should be fairly easy with an ETD. Tune all
>> middle strings at pitch. Then set the ETD to +6 Hz
>> and tune all right strings, set to -6 Hz and tune all
>> left strings, or vise versa. Or so it seems to me.
>No, it's not as straight forward as that. You must remember that you have to
>keep the frame (plate) stable. Where you have an increase in tension you
>must have a corresponding decrease to compensate. Raising all the right
>strings at once will throw out the temperament and then you will really get
>your knickers in a twist. You have to tune and complete each note ("unison")
>as you go along. Might be easier to use 3 seperate ETD's or you
>will be forever twiddling knobs, causing great confusion until you're
>eventually knackered.
Good point. An ETD such as the VT 100 would make it easy then by simply
tuning the unison: -6, 0, +6, right off the display.
Regards,
Jon Page, piano technician
Harwich Port, Cape Cod, Mass.mailto:jonpage@comcast.net
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