A 435 or A 440 ?

[Leslie Bartlett]

I have had a couple persons notice the dfference betweeen 440 and
438............
les bartlett

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From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf
Of David Nereson
Sent: Wednesday, July 26, 2006 1:43 AM
To: Pianotech List
Subject: RE: A 435 or A 440 ?


 
 
-----Original Message-----
From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org]On Behalf
Of Jack Houweling
Sent: Tuesday, July 25, 2006 11:01 PM
To: pianotech
Subject: A 435 or A 440 ?
 
Hello
 
I am working on a Mason and Risch grand piano and the plate has a stamp that
says  " International Pitch A 435" .
 
Is it best to tune this piano to A 435 ?
 
The mother tells me the daughter has perfect pitch. She is away at school so
I cannot talk to her.  Would someone with perfect pitch be bothered by
anything other than A 440? 
 
Jack Houweling
 
 
Nobody has PERFECT pitch.  Some people have very good pitch recognition.
But to most of them, if you played A435 and asked them to tell you what note
it was, they would just say “A,” not  “an A that’s a bit flat.”   At any
rate, the plate and frame can most likely handle having the pitch raised to
440.  You might check to see that the plate bolts are snug.  But yes, it was
designed to be at 435.  And 440 is only 5 beats per second sharp at A #49.
There are probably times during humid summers when it’s way sharper than
that.    
            --David Nereson, RPT 

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