Non-Equal Temperaments

[Joe And Penny Goss]

Hi Corte,
Sotty to hear that, I will let Scott know.
Joe Goss
imatunr@srvinet.com
www.mothergoosetools.com
----- Original Message ----- 
From: "Corte Swearingen" <cswearingen@daigger.com>
To: "Pianotech" <pianotech@ptg.org>
Sent: Friday, April 02, 2004 2:46 PM
Subject: Re: Non-Equal Temperaments


>
>
>
>
>
> Joe,
>
> The couplers that I received were of slightly different sizes.  It was
> visible enough that I could separate them out into little piles based on
> just the visual difference.
>
> I don't disagree with you on the high cost of R&D.
>
> Corte
>
>
>
>                       "Joe And Penny
>                       Goss"                    To:       "Pianotech"
<pianotech@ptg.org>
>                       <imatunr@srvinet.        cc:
>                       com>                     Subject:  Re: Non-Equal
Temperaments
>                       Sent by:
>                       pianotech-bounces
>                       @ptg.org
>
>
>                       04/02/2004 03:45
>                       PM
>                       Please respond to
>                       Pianotech
>
>
>
>
>
>
> Hi Corte,
> It may be that the couplers are exactly the same size while the space
> between the bridge pins is not.
> This would cause you to think that those little couplers were not the same
> size.
> And as to the cost, while the size of the little fellers might lead you to
> think that they should not cost much, the cost of research and development
> is very high to bring any tool or product to market.
> Just a simple plastic part will cost $10,000 to just make the mold to make
> one casting.
> Now if you sell millions that cost can be spread to let the pare to only
> cost a few cents.
> Now how many piano tuners are there in America? <G>
> And how much do you charge for a tuning?
> I had better stop now before I raise up on tip toes on my soap box.
> Joe Goss
> imatunr@srvinet.com
> www.mothergoosetools.com
> ----- Original Message -----
> From: "Ron Koval" <drwoodwind@hotmail.com>
> To: <pianotech@ptg.org>
> Sent: Friday, April 02, 2004 2:06 PM
> Subject: Non-Equal Temperaments
>
>
> > Hey Conrad,
> >
> > I'm guessing this is just a case of over-re-simplificating, but when you
> > wrote this:
> > <snip>
> > I never said all fifths were pure. The fact that they _can't_ all be
pure
> > is why we have to temper in the first place!
> >
> > All the methods of tempering are efforts to split that difference.  The
> > more times you split the difference, the fewer pure intervals until you
> get
> > to ET, where there are none.
> > <snip>
> >
> > It might have been a bit more clear to observe that there are a great
> many
> > temperaments that do not have ANY pure fifths, yet produce key color.
> The
> > Wells and Victorians value a range of dissonence, rather than just
"good"
> or
> > "bad".
> >
> > But back to Corte's question..... Hmmmm, do they "ripen" quicker?  What
> > normally goes out first?  Unisons.  There shouldn't be any difference
> there.
> >   Next, if you live in a variable climate, I guess the octaves start
> getting
> > spread, or contracted, around the break.  All of the machine-generated
> > temperaments set the octaves the same way as ET, so there shouldn't be
> any
> > difference there, either.  Only in the EBVT, by Bill Bremmer, do the
> octave
> > widths get tempered, based on the tempering of the octave 5th.
> >
> > So we are down to the other intervals going out..... Here's the weird
> thing.
> >   ET has all of the beat speeds of intervals, from real slow in the
bass,
> to
> > real fast in the treble.  Moderate temperaments share many of the same
> > beatspeeds, just in a different order than an ET tuner would expect.
> It's
> > easy to find a third out of place in ET by using a chromatic
progression.
> > Since the thirds are already "out of order" in an alternate temperament,
> > there might actually be a little more movement allowed, before the
> > differences are enough to alter the character of the temperament.  But
> > remember, we are already way down the list past the unisons going out
> before
> > any of this comes into play.  Once the unisons get ripe, all bets are
> off!
> >
> > So my guess would have to be that ET is the quickest "ripening"
> temperament,
> > due to the minute tolerances required to actually achieve a true ET.
> >
> > Ron Koval
> > Chicagoland
> >
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