[pianotech] Soundboard deflection - Pitch raise

Al Guecia/AlliedPianoCraft AlliedPianoCraft at hotmail.com
Tue Aug 4 05:19:19 MDT 2009


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

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