Imagine a soundboard with no crown or downbearing. Would a hundred cent pitch correction not require a second pass? David Love www.davidlovepianos.com From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf Of Al Guecia/AlliedPianoCraft Sent: Tuesday, August 04, 2009 9:44 AM To: pianotech at ptg.org Subject: Re: [pianotech] Soundboard deflection - Pitch raise Interesting. Al G From: David <mailto:davidlovepianos at comcast.net> Love Sent: Tuesday, August 04, 2009 10:05 AM To: pianotech at ptg.org Subject: Re: [pianotech] Soundboard deflection - Pitch raise Not board deflection but plate contraction is the culprit. David Love www.davidlovepianos.com From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf Of Al Guecia/AlliedPianoCraft Sent: Tuesday, August 04, 2009 4:19 AM To: Pianotech List Subject: [pianotech] Soundboard deflection - Pitch raise I did 2 pitch raises yesterday (new customers). One was at A-418 and the other was A-420 before I started. What I found interesting was the amount of board deflection. On one of the pianos (A-418), the first 3 notes (A-0, A#-0 & B-0, were dead on, (go figure) on my first pass. I raised the pitch to 440, (some notes on this piano were 190 cents flat, wow!). On my second pass the first 3 notes were about 10 cents flat. I was surprised that the board deflected that much. No question here, just an observation I thought I'd pass on. Al G -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://ptg.org/pipermail/pianotech.php/attachments/20090804/1aa31fe7/attachment.htm>
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