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Piano tuning
I recently had my piano tuned, and it got me interested in how it is done.

While I can recognize a piano that is completely out of tune, I admit that I don’t have a sensitive enough ear to be able to differentiate between a good tuning and a bad one. From what I gathered this is typical to people that play the piano, as on one hand playing the piano requires to pay attention to many things and on the other the pianist can’t influence the tuning like string players can. So pianists tend to develop inferior ears compared to other instrument players in respect to tuning.

From some research I made, I discovered that the art/science of tuning is about making good compromises between tuning notes to defined frequencies (these days, following the equal temperament system) and verifying that the overtones of these notes fit together well in different combinations. According to the model of the piano, its specific characteristics and its history, the overtones tend to shift differently from their ideal pleasing frequency and therefore each piano needs to be tuned differently. Quite complex I would say.

So how do you know if the tuner did a good job? After all, my ear will be educated by this tuning for months to follow.
I suspect it has much to do with personal taste.

There is no such thing as a perfect tuning because as soon as you play out of the C major scale or any of the modes derived from it you would need to theoretically re-tune the piano.

modern equal-tempered tuning plays on the assumption that if you divide the octave in perfectly equal divisions (one for each key) then nobody's gonna tell the difference... well most people won't..

before 1840 or so people were still tuning in ways which made some tonalities sound more in tune than others and each tonality had a different phsycological effect as a result of this.. if you don't consider the actual shift in tonal centre as part of the effect.

very old keyboard tunings were meant for compositions that stayed in one key or maybe a couple etc.. when people started modulating to all sorts of keys within a piece, and when people started writing in all keys (Bach's well-tempered clavier) then the tuning became more like it is today.

Chopin's British tuner was already familiar with equal (modern) temperament.. although tuners probably tuned following their own methods, using unequal tuning up to the late 1800's

I suspect that many of these exceptional tunings are a result of inequality of scale as well as the more technical issues of inharmonicity and the lesser ability of the ear to hear pitch at very high or low notes.

If you want to experiment with tunings, there are some piano-emulation software programs where you can switch from one tuning to the other in a matter of seconds.. can be fun.. although on a real piano the tuning will sound different because it is affected by resonances, mechanical issues etc. etc. etc.
Hi Ram,

Tuning is a very complicated question indeed, and so unstable on op of it ! First, I think you will know if your piano sounds well tuned or not, though it might be hard to prove scientifically (will elaborate on that point later). Just listen to it when you play and if it sounds right (juste), you will simply know it. For this, better to play pieces that you know well and that are slow enough to give you time to listen to the sound you are producing and to hear the intervals between the notes. (no point in trying the bumble bee here)

If you have any doubt while you’re trying your slow pieces, it might be that (a) it’s not well tuned, or (b) that your playing is out of tune. If you’d like to work on playing in tune, get yourself an ancient instrument. The most difficult keyboard one is the clavichord, with this instrument you can play anything from Bach till Mozart and because your finger is striking the string directly, it has the power to make the note’s tone higher or lower. When I was studying this subject in the conservatory, where the ancient instruments where in an especially bad tuning (and other) condition, it was one of the main challenges- to make them sound in tune, remember which note is low and which is high and press the keys accordingly so that you improve the instrument’s tuning. After that, playing in tune on piano will be easy, and yes, there is definitely a question of playing in tune even on a modern piano- how long you stay on a note and how you strike it can make it sound higher or lower, though less dramatically so than on ancient instruments. This is why it is essential to master the art of timing and sound production in order to play juste.

In case the problem might be (a), I could get  you recommendations from pianists I know in Israel for an excellent tuner.

Going back to the beginning, and on why good tuning cannot be scientifically proven, I’ll tell you what happened to me a year ago. I was playing a concert with Bach and Chopin. I knew the tuner to be a very good one, as I worked with him before, but somehow when I tried the piano after his tuning, I was unsatisfied, especially for my Bach pieces. The tension between the intervals was not as I would have liked it to be, and yet I could not say that the piano was not in tune, it was as well in tune as equal tuning could be. So I told him the tuning was too equal and that it lacked tension. He agreed with me and told me that he was obliged to tune that day with the machine, something he does only rarely, because the next day there was a 2 piano concert and both instruments had to be completely the same. Scientifically the piano might have been in tune, but not to my ear.

Anyway, as I said at the beginning, tuning is by essence unstable, it changes with the weather, with how much you play and how you play. It changes also with your piano’s mood :-)Thought it would be nice to bring here a nice picture :


the Lépante clavichord,Cité de la Musique, Paris.
Music Discussed
Digital Classics: Gustav Leonhardt Clavichord Recital (French Suite 2 / Fantasy & Fugue, etc)

Edna,

I'm not sure what you mean, 

I thought the clavichord can only raise pitch above it's tuning because it applies pressure to the string and increases it's tension?
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Latest Post: April 6, 2010 at 11:59 AM
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