false beats

jolly roger baldyam@sk.sympatico.ca
Fri Feb 15 09:41 MST 2002


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Hi Fred.
             A good tip,  I might add string distortion can be caused by rust
and dirt, so make sure the strings are clean and bright.

regards Roger



At 07:49 AM 2/15/02 -0700, you wrote:
>Haven't had the problem, but would suggest CA to solidify the agraffe to
>the bridge as well. Maybe loosen a unison and see if the agraffe seems
>wobbly. Or just hold a blunt screwdriver on it like Roger suggests for
>pins, and see if that helps. If it does, apply CA. 
>       I don't think you are dealing with "string distortion." But massaging
>the strings toward/against the front bridge termination will help as
>well - ie, make a clean bend at the termination, which tells the string
>where its end is. 
>Regards,
>Fred Sturm
>University of New Mexico 
>jolly roger wrote:
>> 
>> Hi Chris,
>>                Try the following.
>> 1. Lift and level strings.
>> 2. Tap all bridge pins this will help to seat strings. ( If they are
>> loose use CA glue)   Use a large blunt screw driver to press down on
>> the bridge pin to confirm if this is the problem.
>> 3.  Phasing is a problem in this register, so reshape the hammers and
>> mate them to the strings. Also check the centre pins and travel the
>> hammer shanks.  Some shank burn in may be required.
>> 
>> If you do all the above it will improve the falseness problem.
>> 
>> Regards Roger
>> 
>> At 01:20 PM 2/14/02 -0600, you wrote:
>> >Just wondering if anyone else has experienced a lot of false beats on
>> old
>> >Sohmer grands. This one has the agraffe bridge instead of the
>> standard 2 pin
>> >style. I am wondering if over time the bridge agraffes distort the
>> music
>> >wire making them false beat terribly. The majority of the false
>> beating
>> >occurs at the tenor/treble break. I am thinking the only remedy would
>> be
>> >restringing the piano. Does anyone else have suggestions? -Chris
>> >
> 

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