Piano Repair/Tuning Demo
The Starting Sound (two keys not working at all, and a terrible tune)
Midway Sound (fixed two unglued jack hinges, two broken harnesses, and a rough tune to bring it up half a step to A440)
FFTuner, etc.
FFTuner Manual (pdf)
2019 Presentation (pdf) (pptx)
Nice FFT description
Photo 1 Photo 2 Photo 3 Photo 4 Photo 5 (courtesy of Tatsu Takeuchi)
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