Rick ...A0 je v pořádku, ale ladění A#0 se nezmění...
This is what happens if you have a piano that is mis-calibrated or not calibrated at all for inharmonicity. At least that's how I saw it.
I don't have a problem with bass tones, but with tones in the treble, where I tune for example D#7 and Pianoscope jumps between D#7 and D#6. It makes me about 10 notes on each piano.