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Re: Some sweet video's: an older piano tuned to an Unequal Temp [Re: Jake Jackson] #2560909 08/04/16 01:05 AM
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Good to hear from you again, David. The new recordings sound very good.

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Re: Some sweet video's: an older piano tuned to an Unequal Temp [Re: Jake Jackson] #2561355 08/05/16 10:36 PM
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Is there anyone who might possibly be able to translate the following for me into Chinese?

Quote
There are two reasons why there is interest on changing the tuning system of the piano.

1. the physics of sound, and
2. its effect on musicality.

For many contemporary musicians music has become merely a circus act because the true nature of music has been forgotten. It has become only a challenge in virtuosity, a spectacle, "man versus beast". Musicians have forgotten the purpose of music as
- a language to convey emotion
- to enable the mind to explore different dimensions of experience
- and to heal.

Healing requires gentle caressing, and harmony not of sound but of the vibrations within sound.

Sound is made of vibrations, regular vibrations per second. These vibrations are either exactly related and part of the total sound, or they are not together and do not relate to each other, producing beats between them.

This produces contrast as between
- solid versus liquid
- certain versus uncertain
- calm versus stressed

Modern piano tuning does not maximise the numbers of vibrations which coincide - which then contrast with those sets of vibrations which do not coincide.

The change to modern tuning was made between 1860 and 1920. At this time the current tuning was used increasingly, becoming universal. It is exact "equal temperament" where each semitone is an exact same distance apart.

1. Physics of sound.

A note which is an octave higher than another note is double the frequency of the lower note. Twice the number of vibrations per second. So "A" in the middle of the piano keyboard is 440 vibrations per second. The "A" above is 880 vibrations per second. The octave above that is 1760 vibrations per second, 1760 "Hz".

When playing the organ, the sound can be made more interesting using "stops" to sound all three pitches, 440, 880 and 1760 from the same note.

All sound is made of timbres in combination of these multiples of vibrations together.

You can hear this when you sing a note and open your mouth to allow the extra sounds to be heard. I demonstrate this on a video https://youtu.be/TF2Cj3ak-Kk.

When a string is struck, all these frequencies vibrate exactly together to give the tone of the string. These frequences form part of the tone of the instrument.

For example, let's tune a string to 100 vibrations per second - 100 "Hz". Giving good tone on the piano this string will produce vibrations at 100, 200, 300, 400, 500, 600, 700, 800 and more vibrations per second.

If we hold down a note at 100Hz in the bass whilst we strike the keys above, for 200, 400 and 800 (an octave above, two octaves, three octaves and four octaves) then these frequencies will excite and resonate the undamped bass string. The sound will continue to be heard in the bass string: even when the upper note stops sounding. This is demonstrated on https://www.youtube.com/watch?v=Pz0B0SwKpww where you can hear this effect.

What is interesting is that when we play two notes together, such as 500 and 600 vibrations per second, then these vibrations will coincide 100 times per second. So the bass note is synthesized. It appears to sound without actually being played. It is a resulting or resultant note. This gives tone and sonority to the instrument and builds the sound.

What becomes interesting also is when we sound together combinations such as 200 vibrations per second and 300 vibrations per second together. We also synthesize a sound at 100 vibrations per second. But the 200 vibrations per second string vibrates with harmonics
200 400 800 1000 1200
and the 300 string vibrates with the harmonics
300 600 900 1200

Then because 1200 vibrations is a harmonic of both strings, we will hear 1200 more strongly and it adds to the timbre, the tone, and can be heard sometimes as an extra note.

If we sound 500 vibrations per second with this then we add the harmonic series
500 1000 1500.

Then a note at 1000 is heard in addition to the note of 1200 and in addition to the 100 vibrations per second. So the timbre of the sound of the instrument becomes reinforced even more.

The problem with modern piano tuning is that the 300 500 600 700 frequencies are not tuned close enough to the perfect harmonic to add the sound reliably except in a jangling way.

As musicians we have experienced a shimmering or glistening to the sound of the piano. Then we say "what a wonderful piano". But by doing this the piano presents the piano rather than presenting the intended effect of the music.

2. Musically this has reduced the dimensions in which the music can speak, reducing them to
a. loud versus soft
b. slow versus fast
c. discordant versus harmonious

Have you read George Orwell 1984? The new language NEWSPEAK reduced the number of words to 300 so that people were limited by their language in their ability to think. This reduction of dimension in music has done the same to music.

3. The meaning of "Chromatic"

As musicians we have been bamboozled into thinking that the chromatic scale is simply going up each note by semitones C C# D D# E F F# G G# A A# B C.

We have forgotten what the language means.

Photographers who are old enough took photographs as transparencies for projection on film called . . . KodaCHROME EctaCHROME FujiCHROME and our lenses are CHROMATICally corrected - which means that on the edges of things in our image we don't see fringes of a spectrum of colours.

In the modern tuned instrument there is no hint of anything that we can call CHROMATIC demonstrating a spectrum of sound like a spectrum of colour.

3. The solution.

The tuning that I use exploits lots of perfect fifths (like F to C and E to B) in the exact ratios of 200:300.

This brings many "thirds" such as F-A and C-E and G-B near to the ratios 500:400. It is close so that it resonates without making other thirds unpleasantly too imperfect such as B-D#. This is enough to return the musical scale to giving a spectrum of "colour" to the chromatic scale. This is necessary for composers "HAYDN", "MOZART", "BEETHOVEN", "SCHUBERT", "CHOPIN" and "LISZT" whilst not doing damage to the music of later composers.

The spectrum of sound that we hear is demonstrated on https://youtu.be/qqS_IjKo-d8

The differences of sounds create a reward to the musician for playing sensitively, reacting to the different sounds differently as intended to be heard by the classical composers. Now the musician is rewarded in moulding the sound shapes in the phrasing of the music, conveying meanings unheard in modern tuning but intended to be heard.

We have a corpus of recordings, many of which are acclaimed by musicians who have heard them:

Music in "colour tuning"


By the way https://www.youtube.com/watch?v=3REzLHO56VE might be quite interesting.

Alastair Lawrence at Broadwoods has been looking at a Handel temperament and it displays similar characteristics to that which I use.

Best wishes

David P


_______________________________
David Pinnegar, B.Sc., A.R.C.S.
- East Grinstead, Sussex, UK -
- http://www.organmatters.com -
http://hammerwood.mistral.co.uk/tuning-seminar.pdf
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Restoring life to music . . . and music to life . . . and a good deal more!
Re: Some sweet video's: an older piano tuned to an Unequal Temp [Re: Jake Jackson] #2561719 08/08/16 02:48 AM
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Here's Beethoven as Beethoven would have heard it.

https://www.youtube.com/watch?v=gJonwRwgaeo

Piano of 1802 tuned to a temperament with many perfect fifths.

This instrument and an 1859 Broadwood are very different to tune to modern instruments, the principal partial being the 3rd in the lower octaves, the twelfth rather than a mix including 4th 5th and 6th partials.

This suggests that these instruments were built for perfect 5th based temperament.

Best wishes

David P


_______________________________
David Pinnegar, B.Sc., A.R.C.S.
- East Grinstead, Sussex, UK -
- http://www.organmatters.com -
http://hammerwood.mistral.co.uk/tuning-seminar.pdf
_______________________________
Restoring life to music . . . and music to life . . . and a good deal more!
Re: Some sweet video's: an older piano tuned to an Unequal Temp [Re: Jake Jackson] #2561958 08/08/16 11:50 PM
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Which Debussy piece is this in UT? https://www.youtube.com/watch?v=GdFXGkqE-MM

Re: Some sweet video's: an older piano tuned to an Unequal Temp [Re: HelloMrZebra] #2561971 08/09/16 01:18 AM
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Cloches à travers les feuilles from Images, Book 2.

It may be all of Images, Book 2. I did not listen to all of it.

Last edited by BDB; 08/09/16 01:19 AM.

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Re: Some sweet video's: an older piano tuned to an Unequal Temp [Re: Jake Jackson] #2562066 08/09/16 12:25 PM
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I hope everyone had the chance to listen to the Beethoven sonata op 27 no2 played with David's temperament:

https://www.youtube.com/watch?v=HiX5Xjtb7-E

By the way, David, could you give us more information about these recordings? Who is playing? What piano is this? And of course, I am still hoping to learn more details about this temperament.


Last edited by Jake Jackson; 08/09/16 12:27 PM.
Re: Some sweet video's: an older piano tuned to an Unequal Temp [Re: Jake Jackson] #2806065 01/24/19 02:16 PM
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One of our more recent recordings in both Equal and Unequal temperament


and original Chopin pedalling on the Bechstein


Best wishes

David Pinnegar


_______________________________
David Pinnegar, B.Sc., A.R.C.S.
- East Grinstead, Sussex, UK -
- http://www.organmatters.com -
http://hammerwood.mistral.co.uk/tuning-seminar.pdf
_______________________________
Restoring life to music . . . and music to life . . . and a good deal more!
Re: Some sweet video's: an older piano tuned to an Unequal Temp [Re: Jake Jackson] #2919050 12/02/19 12:52 PM
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Over the years I've come to perfect the tuning and find a method of applying it to all pianos, successfully. As a result the Nice International Piano Competition asked me to tune for them and I hope you'll enjoy the recording -


It's also great for jazz -


Best wishes

David P

Last edited by Unequally tempered; 12/02/19 12:53 PM.

_______________________________
David Pinnegar, B.Sc., A.R.C.S.
- East Grinstead, Sussex, UK -
- http://www.organmatters.com -
http://hammerwood.mistral.co.uk/tuning-seminar.pdf
_______________________________
Restoring life to music . . . and music to life . . . and a good deal more!
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