Thanks, Doug, for your clarification. Do try it and let me know how you get on! Regards from an even windier yet still sunny Sussex Village Michael G.(UK) ----- Original Message ----- From: <dknabe@airmail.net> To: "Michael Gamble" <michael@gambles.fsnet.co.uk> Sent: Thursday, May 12, 2005 2:55 PM Subject: Re: Pitch Raise > Michael, > > I think we're both saying the same thing, but maybe I said it wrong. > > It appeared, from and earlier post that someone was taking your > istructions literally i.e. Tune the fundamental of A0 to 445 Hz. If that > was a joke, then I apologize for trying to correct a joke. I brought > partials into the discussion to clarify. > > The bit I added was to take your 445,444,443,442 - A4 and translate that > into cents sharp for each quadrant. If I stated it incorrectly, then I > stand corrected. > > I like your quadrant concept and will try it on the next major pitch raise > I need to do. > > Regards, > Doug > >> Please Doug, don't muddy the issue! I'm not talking about "partials" per >> se, but about notes on the piano. In tuning at a given pitch, every note >> you tune is relative to that pitch. So when I say tune "A" to 445 I mean >> the "A" you would expect to BE 440 but have gone past that to 445. Once >> you have established that then you're home and dry, Doug. .... aren't >> you? >> Regards >> Michael G.(UK) >> ----- Original Message ----- >> From: DKnabe >> To: Pianotech >> Sent: Thursday, May 12, 2005 12:31 PM >> Subject: Re: Pitch Raise >> >> >> John and List, >> >> Surely Michael means: >> Tune the 16th partial of A0 to A-445; >> Tune the 8th partial of A1 to A-445; etc >> Tune the 4th partial of C#5 to the 5th partial of A-445 >> etc, then >> Tune the 8th partial of G4 to the 7th partial of A-444 >> etc. >> >> In other words, keep each string at approximately the correct pitch, >> but, for 1st pass, >> overpull by 20 cents those notes tuned to A-445; i.e. all A's, >> C#'s, and F's >> overpull by 16 cents those notes tuned to A-444; i.e. all G's, >> D#'s >> and B's >> overpull by 12 cents those notes tune to A-443; i.e. all G#'s, >> C's and E's >> overpull by 8 cents those notes tuned to A-442; i.e. all F#'s, >> A#'s and D's. >> >> When you finish the first pass, those notes tuned 20 cents sharp will >> have fallen to being on-pitch. Since all the notes are now about right, >> fine tune it normally on the second pass. >> >> Regards, >> Doug Knabe >> Dallas >> Michael Gamble wrote: >> Hello John and List >> You asked: >> Do you have any idea how much tension would be on A-0 when tuned to >> A-445??? J >> Non! But it can't be much above design tension can it! >> Go for it - it works every time. The real "secret" is keeping the >> tension equal right across the frame. >> Talking about equal - anyone read "An Unequal Music" by Vikram Seth? >> Regards >> Michael G.(UK) >> ----- Original Message ----- >> From: John Fortiner >> To: 'Michael Gamble' ; 'tom driscoll' ; pianotech@ptg.org >> Sent: Thursday, May 12, 2005 1:05 AM >> Subject: RE: Pitch Raise >> >> >> >> >> >> >> >> -------------------------------------------------------------------------- >> >> From: Michael Gamble [mailto:michael@gambles.fsnet.co.uk] >> Sent: Wednesday, May 11, 2005 3:08 PM >> To: tom driscoll; pianotech@ptg.org >> Subject: Re: Pitch Raise >> >> >> >> Hello Tom and List >> >> I suppose it's not at all helpful to state the obvious - "it's in >> Archives"! No? Well then this is the way to do it: >> >> Have a cheapo ETD - you know the things - get it from a guitar >> shop. >> They usually have A=439 to A=445 or so. With that tune all the A's >> to the A=445 - all 8 of them. Do you have any idea how much tension >> would be on A-0 when tuned to A-445??? J Next tune the intermediate >> M3's i.e. all the C# and the F's. Now quarter of the piano is done. >> >> Next recalibrate the ETD to A=444. Now tune all the G's to 444 >> pitch >> and follow that with their intermediate M3's - i.e. all the D#'s and >> all the B's. Now you're half-way! >> >> Next recalibrate the ETD to A=443. Tune all the G#'s and then the >> intermediate M3's. (three-quarters of the way!) >> >> Last recalibrate the ETD to A=442. Tune all the F#'s and then the >> intermediate M3's >> >> And you're done! Sounds like a neat system that I'm going to have >> to >> try. >> >> Now fine tune. >> >> Note this... I ALWAYS DETUNE EACH STRING SLIGHTLY BEFORE PUTTING UP >> THE TENSION. This breaks the bonding at the pressure bar or capo. >> Even use a touch of de-oxidising fluid at those points before you >> start. >> >> Regards from a dark Sussex Village >> >> Michael G.(UK) >> >> ----- Original Message ----- >> >> From: tom driscoll >> >> To: Pianotech >> >> Sent: Wednesday, May 11, 2005 5:34 PM >> >> Subject: Re: Pitch Raise >> >> >> >> >> >> ----- Original Message ----- >> >> From: Michael Gamble >> >> To: pianotech@ptg.org >> >> Sent: Wednesday, May 11, 2005 9:54 AM >> >> Subject: Pitch Raise >> >> >> >> Hello List >> >> . <SNIP>So I used my "Quadrant System" to bring it up to A=440 >> and fine tune it in two hours. <SNIP> >> >> Michael G.(UK) >> >> >> >> Michael, >> >> Could you elaborate on the Quadrant system ? >> >> Thanks, >> >> Tom Driscoll RPTired today. >> > > > >
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