stability of pitch raises

[Stephen Airy]

I'd like to see the day when:

A tuner can pitch raise and fine tune any piano that's
say, 250 cents flat, in one pass and under 2 hours,
without muting the piano.  Use of a SAT or similar
device is permitted, but can it be done (in the
future) without one?


--- Tvak@AOL.COM wrote:
> I do all my pitch raises using RCT, so I end up very
> close to pitch after the 
> first pass.  If the piano is 50 cents flat or more,
> I have always warned the 
> client that a pitch-raised tuning is a less stable
> tuning, and that their 
> piano may need another tuning in 3 or 4 months.  
> Rarely do they actually 
> call me in 3 months.  Most often I come back in a
> year...OR TWO, and I am 
> usually surprised at how well the piano has stayed
> in tune.  Not that the 
> piano doesn't need a tuning, but it's tolerable
> enough that I can understand 
> why I haven't been called back sooner.  I suppose
> it's possible that the 
> piano did all its drifting in the first 3 months,
> and just stayed there, but 
> I'm starting to wonder about the conventional wisdom
> that a pitch-raised 
> tuning is less stable.  
> 
> Could it be that the use of the RCT negates the
> instability issue by virtue 
> of getting the piano so close to pitch after the
> first pass?
> 
> Any thoughts?
> 
> Tom Sivak


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