Hello everyone, I am Riccardo, I am a pianist and trumpeter, recently intending to fix my Schulze upright piano... For this reason, I came across one of your videos on mechanical regulation. I was pleasantly impressed and fascinated by the quality of the videos, content, information, and so much more from the site that I have only partially discovered. Thank you for this beautiful and extremely useful initiative, a great stimulus for musicians and apprentice piano technicians like me.