Joe Goss imatunr@srvinet.com www.mothergoosetools.com ----- Original Message ----- From: "Charles Neuman" <piano@charlesneuman.net> To: <pianotech@ptg.org> Sent: Friday, May 31, 2002 9:51 AM Subject: Re: Retirement of a fork > Wow, that's interesting. I have noticed my fork (which is supposed to be a > good one) was around a cent off from the A440 on my electronic metronome. > Since I can calibrate TuneLab to whichever A440 I'm using, I haven't yet > determined which is correct. I have been using the fork so I can learn to > use a fork. But if I want to set an accurate A440, maybe I'll switch to my > electronic A440. > > If you're calibrating your own forks, one strategy might be to calibrate > it so that it's at A440 when you've held it in your hand. Your body > temperature is pretty constant, so whatever season it is, you just warm up > the fork in your hand and it should be at A440, right? I find that my > forks changes pitch a little after I've handled it, especially in the > winter when it starts out cold. Someone else had suggested putting the > fork between your belt and shirt, and to use that temperature. > > Charles > > > > Date: Fri, 24 May 2002 19:11:25 -0400 (EDT) > > From: David Renaud <drjazzca@yahoo.ca> > > > > I recall getting paranoid about my fork before > > my exam. Checking at the acutuner display I > > was appalled to learn it was 2.5 cents flat. > > Promptly purchased a new one, finding it .8 cents off. > > Reporting to the supplier's table they offered their > > best big $50 heavy fork. To acutuner I ran > > discovering it was 4.5 cents flat. > > > > So I learned to adjust forks and calibrated my > > collection. Learned to be aware of fork temperature > > and resulting pitch variation. For years they served > > me well. From time to time I would drop one, or they > > would rust out. For whatever reason every time I would > > check them against a machine they had changed > > somewhat, requiring tweaking of pitch. > > > > These last 3 years I use an cheap Sieko device that > > can buzz pitches. $5 garage sale item. Checked it's A > > with acutuner and tunelab on various occasions and it > > stops the lights. > > > > It does not wear out the old teeth, does not > > fluctuate in pitch with temperature, does not require > > 3 hands, has not required tweaking of pitch > > calibration, and is not expensive. > > > > Based on my experience I propose that we can maintain > > a more consistent standard with greater ease, and > > therefore a higher standard with a cheap electronic A > > then with a fork. > > > > PS. I still carry a fork, as it does not require > > batteries. > > Also Continue to experiment with tunelab these > > last couple months. Nice tool. > > > > Dave Renaud > > RPT > > > >
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