[pianotech] "cracking" the unisons

[Duaine Hechler]

David,

Refining the temperament does not sound right.

It sounds like you are still tuning to an equal temperament, however, tuning like "honky tonk" except not that extreme.

I almost got a steady church tuning once, accept the organist explained it to me this way. With the unisons in "perfect" 
unison, the piano does not have that "expanded" sound or "ring" to it.

When I tried to listen as she played, the best I can relate to it as the unisons being out of unison by just enough to 
start a very slight rolling wave.

Needless to say, she kept their regular tuner:-( :-[

My 2 cents,
Duaine

On 04/13/2011 08:02 PM, David Nereson wrote:
> Oh, OK -- so, one isn't really "cracking" a unison, but rather, refining the temperament.
>    --David Nereson, RPT
>
>
> ----- Original Message ----- From: "Ryan Sowers" <tunerryan at gmail.com>
> To: <pianotech at ptg.org>
> Sent: Wednesday, April 13, 2011 9:49 AM
> Subject: Re: [pianotech] "cracking" the unisons
>
>
>> Cracking (or shimming) the unisons is a way to move an entire unison up or
>> down a very slight amount for fine tuning. Lets say you have a 3rd that you
>> want to be just a tiny bit faster or slower. You mute out one string of the
>> unison and leave two open. You move one open string so that the two strings
>> have the slightest whine or out of phase sound and then bring the other one
>> up or down to match it. Then bring in the third string.
>>
>> On Tue, Apr 12, 2011 at 11:46 PM, David Nereson <da88ve at gmail.com> wrote:
>>
>>> Re: Ben Gac's article in the most recent Journal:  What actually cracks
>>> when one "cracks the unisons"?  I know, I know -- it's an expression -- but
>>> what in the actual procedure gave rise to the use of this phrase?  I still
>>> don't see how it differs from tuning beatless unisons.
>>>   --David Nereson, RPT
>>>
>>
>>
>>
>> -- 
>> Ryan Sowers, RPT
>> Puget Sound Chapter
>> Olympia, WA
>> www.pianova.net
>>
>
>


-- 
Duaine Hechler
Piano, Player Piano, Pump Organ
Tuning, Servicing&  Rebuilding
Reed Organ Society Member
Florissant, MO 63034
(314) 838-5587
dahechler at att.net
www.hechlerpianoandorgan.com
--
Home&  Business user of Linux - 11 years