I'm curious how you all do pitch raises. I've always been taught that the pitch can be brought up, and the piano tuned, all in one sitting - that's what I do. Assuming that the piano is not more than about 100c flat (most all neglected pianos are never flatter than this, unless it's a birdcage or some such PSO) I bring the pitch up in 2 passes or less. I use the Accu-Tuner pitch raise function (what a wonderful tool). The condition of the piano and the amount of flatness determines what approach I take and how many passes I will do to restore it back to A440. After the pitch raise(s) I tune it. All this is done within the course of about 2 - 2 1/2 hours, max. When I'm through I tell the client that it's wise to retune in 4-8 weeks after the piano has had a chance to settle at its newly restored tension and to help "lock in" the tuning. I use the "teeth and braces and retainer" analogy: [When braces are removed the teeth still retain a memory. In order to keep the teeth from moving back to their original positions a retainer is used to help "lock them in."] Thus, I state that the follow-up tuning in 4-8 weeks is analogous to the retainer for teeth. When I return to retune a previously pitch-raised piano within 4-8 weeks I find different results. Sometimes the piano has really shifted around and it's a good thing that I'm back doing a follow-up tuning. Other times I find that the piano is holding great - right where I left it - and that the follow-up tuning may not have been necessary. I realize that many factors can affect what happens in between the pitch raise and my return follow-up tuning: condition and quality of the piano, the amount and severity of usage, humidity fluctuations, movement of the piano, how well I originally tuned it, etc. I ask all this to verify my procedures for pitch raising and to assure myself that I'm treating my clients in the most fair and honest way possible. Any feedback would be greatly appreciated! Regards, John Piesik San Diego Chapter PTG JPIESIK@ARINC.COM P.S. I charge a flat rate for EACH pitch raise on TOP of my flat rate for the tuning.
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