David, thanks for the clarifications. Very nice. Excuse me here if my lack of musical theory fundamentals is too obvious. A few references that I just looked at on this topic, and which I recommend for others, are:
https://www.hpschd.nu/tech/tmp/kellner.html and
https://www-personal.umich.edu/~bpl/larips/bachtemps.html and
https://www.youtube.com/watch?v=9AwZDdBzi0M .
So what you call "Unequal Temperaments" is what has traditionally been referred to as "Historic Temperaments", and (a variation of) the Kellner Temperament that you favor is one of the many versions of Well Temperament. I already knew that Well Temperaments favor fifths and fourths, but the chart on Kellner at the start of the youtube video that I reference above is interesting. It shows that some of the major thirds (and I presume also M6's, m3's, and m6's) in Kellner are worse than with ET, and a few are quite good. The youtube video (with your tuning) refers to the good intervals as "home keys" and the bad intervals as "distant keys" – you certainly hear a dramatic difference in quality of sound between them. (Being a historic temperament, I presume Kellner is based on the perfect octave.)
In general when working with the large number of historic temperaments, aka non-equal-temperaments, a match-up is desirable between the actual original temperament used in the composition of the piece being played and the temperament that the piano is tuned for. Such as Mozart with the Meantone genre, Bach with the Well Temperament genre, etc. I personally would appreciate having a table that matches a composer with the particular historic temperament(s) that they used for their compositions -- before the industry standardization to ET. But all said, David, your Kellner variant seems to be doing a good job with certain compositions.
I appreciate our industry tuning standard being 12-TET based on the octave; an important and practical decision. It's unfortunate for us acoustic piano tuners that digital pianos, including now the all-digital hybrid piano, let a player instantly choose and adjust the temperament that the piano is tuned for.
Regards, Norman
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Norman Brickman
Potomac Piano Service
Potomac, Maryland
potomacpiano@verizon.net
https://potomacpiano.com
(301) 983.9321
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Original Message:
Sent: 09-08-2023 19:16
From: David Pinnegar
Subject: Unequal temperament recordings news
Norman - it's great to hear from you and that someone at least has enjoyed the recordings.
I use a variation of Kellner. It's taken me a dozen years of research and then half a dozen of perfection to get it right and I'm hoping that perhaps Steinway or Bosendorfer hiring out instruments for concerts might take an interest as it can be transformatory. One pianist for whom I tuned became so excited after his Beethoven Appassionata
https://youtu.be/wV3jOOt66kY?t=2458 he actually broke into his concert to talk about the tuning and his ensuing Schumann Arabeske is one of my favourites.
Our ears are so blunted by equal temperament that people aren't listening to tuning, nor what it does - but vibrations are the music. It's for this reason that I've gone for the strongest possible tuning that's actually audible
https://www.youtube.com/watch?v=4dCQyD57e9M but so that it doesn't offend at the worst and does no damage for music which wasn't obviously written for it indeed such as Brahms and Dvorak such as in the four hands concert. But it's great for Gershwin, Debussy, Ravel and Fauré too . . .
Trying these temperaments tuned normally is a start and you might get good results but which will vary from piano to piano - so have a go. My standardisation across instruments has resulted from a twist to the temperament in the bass as well as another tweak in the middle - but this is only a matter of refinement beyond the first step of tuning unequally in the first place.
The important thing is whether perhaps you heard a difference or differences in the recordings? For me they're standard but whether anyone else actually hears them is another matter. Certainly up close performers do, and the music can speak with them and it can alter their performance, making it potentially more interesting, more alive - and in my opinion this is what classical music and piano music needs more than ever nowadays. If you didn't hear a difference - that's great! It means that I've done my job producing a more musical tuning with more of a homeopathic subliminal effect.
Pretty good photos can be taken nowadays with a mobile phone - like equal temperament - but the real sensitive musicians as pro-photographers will still revert to silver-halide film and a large format camera. Like the latter, the unequal temperament can pull things into focus and contrast with others pushed out of focus. But the true photographer artist might go one stage further
https://www.instagram.com/p/CpaogintV0C/ and the tuning can do this for the music. It creates true chromaticism.
However
A flat major is the key of putrefaction and death - so please do beware. Untamed it can become smelly. With long suffering performers we have done the experiments
https://youtu.be/AHAZjcPmtrs?t=2809 and in Meantone one certainly can visit the farmyard and smell the manure, But with a Well Temperament tuning the sound is serene -
https://youtu.be/AHAZjcPmtrs?t=1566
Best wishes and all encouragement
David P
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David Pinnegar, B.Sc., A.R.C.S.
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+44 1342 850594
Original Message:
Sent: 9/8/2023 6:37:00 PM
From: Norman Brickman
Subject: RE: Unequal temperament recordings news
David, very nice. Thanks for posting it all. My favorite was probably the duet with the Bluthner, but all were nice.
Can you elaborate on the "unequal temperament" tuning? At first I figured you were referring to historic temperaments, like Well or Meantone or Just, but then I realized that such did not appear practical for the given environment. Too much re-tuning and worrying about wolf intervals and tuning for the proper key and such. But if it truly was not an equal temperament environment, how did you handle the modulation to different musical keys for the various musical pieces that were played; that is, what (and how much) were your adjustments to equal temperament? Just curious about the details! Thanks.
Regards, Norman
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Norman Brickman
Potomac Piano Service
Potomac, Maryland
potomacpiano@verizon.net
https://potomacpiano.com
(301) 983.9321
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