[CAUT] well tempered

[Becker, Lawrence (beckerlr)]

Chris-

I'm sorry I didn't catch this thread earlier.  In case no one else has
told you this by now, the newer SATs are set up for you to enter custom
non-equal temperaments.  You enter one octave's worth of offsets (1
offset per note) then can apply this with a saved tuning.  Check with
the Sandersons or slog through the manual--it's been several years since
I did this with an SAT, but it's not too hard, and it's automatic, after
being properly stored.  

Lawrence

Lawrence Becker, RPT
Piano Technician
College-Conservatory of Music
University of Cincinnati
-----Original Message-----
From: caut-bounces at ptg.org [mailto:caut-bounces at ptg.org] On Behalf Of
Chris Solliday
Sent: Saturday, March 22, 2008 10:31 AM
To: College and University Technicians
Subject: Re: [CAUT] well tempered

Thanks for replying Ric, I agree for good or bad the myst seems to be
rising. Can you help with one simple issue? Are the ETD "deviations from
equal temperament" given by Lehman for A49 up to G#60 or for what I
might
call the "temperament octave" below that, beginning with A37 up to G#48.
Does it matter? It seems to me it must. I find this further confusing
because Lehman's indications are centered around middle C40 rather than
the
C52 fork most tuners use. Maybe I'm over-thinking this but I'd really
just
like to get this tuning done and then reread my Jorgensen Tuning book at
the
beach over the summer :>)
Thanks for any further insight,
Chris of the ET Clan
----- Original Message ----- 
From: "Richard Brekne" <ricb at pianostemmer.no>
To: <caut at ptg.org>
Sent: Saturday, March 22, 2008 5:07 AM
Subject: [CAUT] well tempered


> Hi Chris
>
> Ear instructions are at :  I suggest starting with the ear version so
as
> to get aurally in touch with the tuning from the get go.
> http://www-personal.umich.edu/~bpl/larips/Bach-by-ear-062905.pdf
>
> The ETD instructions given by Lehman himself are below: This is for an
> ETD without any historical temperaments already loaded.  He has
another
> version for manipulating the Vallotti setting.... but this perhaps
gives
> you a better view of how it diverges from ET.
>
> Try it.. you like it... and on that note... it might be a good idea
for
> tuners to get this both aurally and ETD wise in their routines... this
> has all the looks of becoming the latest mystical fad in tuning ....
> I've already had a few very off the wall comments about this
temperament
> from pianists who up to a couple years ago had absolutely no interest
or
> understanding in the temperament world.  They still evidently have no
> direct understanding... but their interest is peaked (for the moment
> anyways) and as these things usually go... their <<intuitive>>
> understanding is rapidly developing :)
>
> Cheers
> RicB
>
>
>     * Tune A exactly to its equal-temperament position.
>     * Tune B exactly to its equal-temperament position.
>     * Tune E pure to B, and check that it is 2 cents low (from the
> prescribed equal-temperament position) on your device.
>     * Tune D 2 cents higher than its equal-temperament position.
>     * Tune G 4 cents higher than its equal-temperament position.
>     * Tune C 6 cents higher than its equal-temperament position.
>     * Tune F 8 cents higher than its equal-temperament position.
>     * Tune C#, G#, Eb, and Bb each 4 cents higher than its
> equal-temperament position.
>     * Tune F# pure to both C# and B, i.e. 2 cents higher than its
> equal-temperament position.
>     * Check everything by ear: E-B-F#-C# pure 5ths, C#-G#-D#-A# 5ths
> with only the slightest wobble, and F-C-G-D-A-E 5ths with a bit more
> wobble.