This is strange. I find that usually Pianoscope tends to tune a little sharper than the SAT, depending upon which "style" is chosen. I'll use the pitch raise if the piano is more than 5% low. I don't remember having to retune the bass up 5-7 cents like in your case. Next time I'm in front of a GH-1, I'll pay close attention. Also, I sometimes use the automatic note set to increment one step up or down rather than full automatic. I see it jump sometimes an octave or a different note, and I didn't see that the keyboard display had changed. Keep an eye on exactly which note you're tuning and whether the display is on that note. That may have something to do with your situation, I don't know. My SAT III has a similar situation if I use the automatic note switching. Sometimes it will switch to a different note altogether, and the bass will end up quite sharp. Very annoying to have to go back and retune.
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Paul McCloud, RPT
Accutone Piano Service
www.AccutonePianoService.compavadasa@gmail.com------------------------------
Original Message:
Sent: 07-09-2026 21:12
From: Timothy Edwards
Subject: PianoScope errors?
Hi Paul,
I would occasionally notice a small error with my SAT on a note or two, but on this GH-1, the entire bass section was off. Never noticed that large an error with my SAT, or even with other pianos using PianoScope.
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Timothy Edwards
Beckley WV
(740) 517-7636
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Original Message:
Sent: 07-06-2026 01:22
From: Paul McCloud
Subject: PianoScope errors?
I've been using Pianoscope for about 2 years, previously I also used an Accutuner. The pitch raise feature in Pianoscope on large pitch raises doesn't seem to work so well (more than 20 cents), but less than that seems to work quite well. When using the pitch raise, I'll select a max 25% over the default 20%. If you use the pitch raise feature, be sure to look at the overpull on the graph before you begin. Sometimes I see major errors on the graph where the software measured a different note and threw the calculation way off. I will sometimes resample notes that appear off just to make sure they are correct. If you're not using the pitch raise, and the piano is more than 5% off, you'll not end up close to where you need to be. On some pianos that are around 5 cents off, I'll use the pitch raise anyway, and it comes out just fine. I also use the freeze line, which makes the tuning even better.
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Paul McCloud, RPT
Accutone Piano Service
www.AccutonePianoService.com
pavadasa@gmail.com
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