A 435 or A 440 ?

[David Ilvedson]

5 beats per second?...if 442 is about 8 cents sharp, 438 would be about 8 cents flat and 435 getting close to 20 cents flat...that seems like a pretty hefty difference...I'd think it was noticeable to a 440 perfect pitcher...

David Ilvedson, RPT
Pacifica, CA 94044





Original message
From: "David Nereson" 
To: "Pianotech List" 
Received: 7/25/2006 11:43:15 PM
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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