<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META http-equiv=Content-Type content="text/html; = charset=iso-8859-1"> <META content="MSHTML 6.00.2712.300" name=GENERATOR> <STYLE></STYLE> </HEAD> <BODY bgColor=#ffffff> <DIV>Hi Bill,</DIV> <DIV> </DIV> <DIV>Guess I'm in one of my moods to answer some of this = garb......</DIV> <DIV> </DIV> <DIV>When you tune by ear, do you set an octave note on the exact beat, = on the slight rise of the beat or on a slight fall of the beat.  = Personally I like it on the slight rise, you know, about .01 of a cycle sharp, that is = around C5 of course. Mind you, you have to think about the other aspect of tuning = that doesn't seem to get much of a mention. Had something to do with = perception. but then again how do you measure something that you perceive.?</DIV> <DIV> </DIV> <DIV>Regards,</DIV> <DIV><FONT size=2></FONT> </DIV> <DIV>Tony Caught<BR>Darwin<BR>Australia<BR><A href="mailto:caute@optusnet.com.au">caute@optusnet.com.au</A><BR></DIV>= <BLOCKQUOTE style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; = BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px"> <DIV style="FONT: 10pt arial">----- Original Message ----- </DIV> <DIV style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: = black"><B>From:</B> <A title=Billbrpt@AOL.COM = href="mailto:Billbrpt@AOL.COM">Billbrpt@AOL.COM</A> </DIV> <DIV style="FONT: 10pt arial"><B>To:</B> <A = title=pianotech@ptg.org href="mailto:pianotech@ptg.org">pianotech@ptg.org</A> </DIV> <DIV style="FONT: 10pt arial"><B>Sent:</B> Monday, April 29, 2002 = 4:51 AM</DIV> <DIV style="FONT: 10pt arial"><B>Subject:</B> Re: C fork/A = fork</DIV> <DIV><BR></DIV><FONT face=arial,helvetica><FONT size=2>In a = message dated 4/27/02 6:57:28 PM Central Daylight Time, <A href="mailto:joegarrett@earthlink.net">joegarrett@earthlink.net</A> = (Joseph Garrett) writes: <BR><BR><BR> <BLOCKQUOTE style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #0000ff 2px = solid; MARGIN-RIGHT: 0px" TYPE="CITE">Close only counts in Horseshoes, Hand Grenades and H = Bombs. If we espouse <BR>tuning to A=440 then, shouldn't we use an A Fork? = Granted the difference is <BR>minimal, but a difference non the less. = </FONT><FONT lang=0 face=Arial color=#000000 size=3 = FAMILY="SANSSERIF"></BLOCKQUOTE> <DIV><BR></FONT><FONT lang=0 face=Arial color=#000000 size=2 FAMILY="SANSSERIF"><BR>Yes, but Joe, the difference would never = matter under ideal circumstances by a skilled technician.  By Al Sanderson's = figure of .02 cents, it could not be perceived aurally.  Bill Garlick = proved this time and again in his classes. <BR><BR>What would make a difference = would be the fork's sensitivity to temperature.  Some forks vary wildly, = others a cent or two. <BR><BR>The other assumption being made is that anyone = who uses a fork to tune aurally will produce a perfect ET.  If you know me, = you know that I don't believe it is really true most of the time.  So, if anything, this would be the argument for using an "A" fork over the = "C". <BR><BR>I actually do agree that an "A" fork which is properly = calibrated and reliable should be used rather than a "C" but having said that, the = people who are experienced and more comfortable using the "C" fork and the = temperament sequence that goes with it will produce results indistinguishable from = the other method.  This has been proven enough times that the PTG = Tuning Exam permits the use of either pitch source.  Whatever difference = there may be falls far short of the very tight tolerances in the pitch and = temperament portions of the exam. <BR><BR>It is those whose temperament varies by = either design or default who will produce an A4 which is off the mark by = using a "C" fork.  The standard for pitch is A4 at 440.  C5 at 523.3 is = merely the *theoretical equivilant*.  Some time ago, there were those = who were saying that a temperament could still be considered "equal" with 2 or = even 3 cent tolerances for each note.  Those are loose enough standards = to produce an 18th Century style Well-Tempered tuning or even 1/7 Comma = Meantone. Using that kind of loose standard and a "C" fork would most certainly = produce an A4 which would be unacceptably off pitch. <BR><BR>Bill Bremmer RPT <BR>Madison, Wisconsin <BR><A = href="http://www.billbremmer.com/">Click here: -=w w w . b i l l b r e m m e r . c o m =-</A> </FONT></DIV> <DIV> </DIV> <DIV><FONT lang=0 face=Arial color=#000000 size=2 FAMILY="SANSSERIF"><BR>---<BR>Outgoing mail is certified Virus Free.<BR>Checked by AVG anti-virus system (<A = href="http://www.grisoft.com">http://www.grisoft.com</A>).<BR>Version: = 6.0.346 / Virus Database: 194 - Release Date: 10/04/02</FONT></FONT></DIV></BLOCKQUOTE></BODY></HTML>