[pianotech] Thanks and further comments

Susan Kline skline at peak.org
Fri Feb 4 10:32:57 MST 2011


On 2/4/2011 5:49 AM, Avery Todd wrote:
> Besides, if an instrument is THAT flat, I usually just pull it up to 
> pitch the first time over anyway. 

That's what I do. Then I use the "wetware" overpull the second time 
around, when it can be much less.

By then, the strings are getting used to sliding over the bearings 
again, and one knows if they feel like breaking, as Avery said.

If it is the age of upright which might have been designed for A=435, I 
might pull only to 435 the first time around. I carry a 435 fork for 
older (pre-440) pianos which seem reluctant to come up.

The very first private job I did, while I was still in the course, was a 
big old upright way out in the country, painted white, and a major third 
low. I cautiously raised it a half tone each pass, came back in a week 
or so, tuned it again, came back two weeks later, tuned it, and it was 
pretty stable by then. Nothing broke (beginners luck). I tuned it every 
six months till I moved away.

Susan
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