If I understand correctly, Pianoscope will perform this function automatically? In the video, you mention that the tone analysis feature is not included in Pianoscope.
Another point is that in the demonstration where you go down by semitones, you can hear that most of the notes have slightly out-of-tune unison strings. This can be very confusing for Pianoscope.
When tuning by ear—which I prefer to do for very high notes—you also adjust your position relative to the piano, because you hear something different in each location. For the best result in the treble, you should stand up when tuning. Once I think I’ve got the tuning right, I take a piece of felt and mute the entire treble section so that only two strings per note are sounding. Then, I play through the treble chromatically, or play all the white or all the black keys with a relatively strong attack. In this state, you can really hear if any of the unison strings are still out of tune. With a strong attack, some might go slightly sharp or flat.
You keep playing and fine-tuning these two strings across the entire treble section until you’re satisfied. Then, you replace the felt and do the same process with the third string in each unison. The result is a perfectly clean treble, which is otherwise quite difficult to achieve. If I have the time and inclination, I might make a video demonstration. It may sound complicated, but it’s actually simple and very effective. Throughout this process, you can use Pianoscope to check each note. You also begin to notice the significant difference when tuning a single string versus two at once. For example, Pianoscope, even with the freeze function, may show a single string as in tune, but when you tune the second by ear, you’ll find that both strings tend to end up slightly low. Adding the third string often puts you even further off. 😃
That’s why, if I really want a beautifully tuned piano, I always tune two strings at once. It’s challenging at first because you’re constantly moving the tuning hammer back and forth between pins to get to zero. But with practice, you can get a good sense of how much to adjust one pin so that when tuning the second string, it’s at the correct pitch.
