Hi Benny! You might want to talk to Yamaha's own LaRoy Edwards about this. If I remember correctly, he has found that if the unisons were not quite perfect (off by some almost imperceptible amount), the note will "project" that much more strongly. It's like having the "sweet spot" ever-so-slightly "off-center" if that makes any sense. As for whether or not it is possible to have every last screaming partial line up precisely across 3 strings ... I hardly think so. There are so many variables to contend with, starting with inherent imperfections of the piano itself. Furthermore, with the amount of flexing a piano is capable of doing, trying to nail a unison tuning of one string against another is like nailing a moving target, then expecting it to stay put in a perfect relationship with whatever it was you nailed it with, when that too is moving. Keep trying to do your best, but keep in mind that you can do only as well as the piano will let you. Z! Reinhardt RPT Ann Arbor MI diskladame@provide.net ----- Original Message ----- From: "Benny L. Tucker" <precisionpiano@alltel.net> To: <pianotech@ptg.org> Sent: Tuesday, May 28, 2002 10:52 PM Subject: trichords unisons Hi list, I've been going crazy lately, "most folks think I'm already there", trying to get my unisons perfect! I've read a lot in the archives about unison tuning, and I get plenty of practice everyday at the plant. I'm just trying to evaluate my own tuning standards. I don't think I'm incompetent, but maybe. Problem: 3 years now tuning at the Yamaha factory, 2 years moonlighting on my own after work, and yet I still can't set a "perfect unison" without taking considerable time. I would think my unisons would pass the RPT unison test, but I've never been satisfied with meeting minimum standards. To put it another way, I love this profession dearly, and yes, I want to be better than average. I may be looking at this wrong, but to me a perfect unison should not have ANY rolling of ANY partial for the duration of the sound. Is this to much to ask for, or is this the way most of you folks normally tune? On home and Church tunings, I mostly just try to get the unisons as clean as I can for as long as possible before the higher partials start to slow roll. I can do the perfect unisons, but for me that means striking the key, and waiting, and waiting , and waiting for the slow roll then move the hammer "more like add or release pressure", while pounding, then when I think I've got it right let it ring and wait, and wait and wait etc. You get the picture. At my level of experience, it could take me several hours to get each and every unison "completely beatless". What is the accepted standard, if there is one. How do you define the perfect and/or the acceptable unison. FWIW, I have absolutely no trouble with the bass or the high treble, it's that dang tenor section. It seems like the better I get, the more I can hear, the worse I actually tune. Comments anyone? Benny L. Tucker Yamaha Factory Tuner Precision Piano Tuning & Repair Thomaston, Ga.
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