Probably not, but here goes (Reader's Digest version). First of all there are many ways to do it. Briefly, you must have a reference point, either a tuning fork or (as most of us do) an electronic tuning device (ETD). With most ETDs, we are able to calculate a "stretch" for the piano (pianos are not tuned to pure pitch like an electronic organ, they are tuned slightly flat in the bass end and slightly sharp in the treble. This is called stretch. This amount varies according to the size of the piano and scaling of the strings). Once the ETD has helped calculate the stretch, we use it to tune one string of each note, and our ears to tune the remaining strings of the note, and then continue on to the next one. Yes, there is a lot more to it than that, but no way could it be explained here. Yes, tuners still tune just by ear, and I dont think the debate over which is better will ever be settled. Hope this helps....Sam
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Since 1975; Full-time piano tuner/tech in Nashville;
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www.SamLewisPiano.com