The shadow knows

[Andrew and Rebeca Anderson]

H'mm,
I remember this when I was first learning to tune aurally.  My wife's 
grand backed up to a window.  I could see strings sharpen up 
together.  I can still see wound strings come into phase by just 
watching them.  The little ones are harder for my eyes.  And I do use 
an ETD but don't spend any time watching it when putting unisons 
together so I get to see this every time I tune a piano in a well-lit 
environment, not too often in south Texas where dark is associated 
with -cool-. :-)

Andrew Anderson

At 09:55 PM 9/19/2007, you wrote:
>I for one found it very interesting.   A few years ago I I saw 
>string shadows during tuning for the first time.  I was amazed at 
>the amount of deflection of the tenor strings.  For some reason, it 
>is not apparent at all if you only watch the strings.
>
>Jurgen Goering
>Piano Forte Supply
>(250) 754-2440
>info at pianofortesupply.com
><http://www.pianofortesupply.com>http://www.pianofortesupply.com
>
>
>On Sep 19, 2007, at 17:32, pianotech-request at ptg.org wrote:
>
>>I was really hoping someone would find the shadow thing 
>>interesting, which is what the post was about, rather than the 
>>obvious direct sunlight thing.
>>
>>Ron N
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