Yuri Tarnopolsky
ESSAYS Essay 14.
On Taking Temperature with a Clock
temperature. range of variations.
music. chaos. order. rubato. Bach. Beethoven. Bartok. Use Firefox browser or see essays-complete.pdf |
Essay 14. On Taking Temperature with a Clock
Baron
Munchausen once had to
travel by post carriage during a ferociously cold Russian
winter. The winter was then so uncommonly severe
all over Europe, that ever since the sun seems to be
frost-bitten. THE
SURPRISING ADVENTURES OF BARON MUNCHAUSEN,
By Rudolph Erich Raspe, Chapter VI.
On a narrow road he made the coach blow
his horn to warn the oncoming travelers. Not a sound,
however, could be extracted from the horn. Having arrived at the inn, the coach
hung the horn on a peg near the kitchen fire. Suddenly we
heard a tereng! tereng! teng! teng! We looked round, and
now found the reason why the postilion had not been able
to sound his horn; his tunes were frozen up in the
horn, and came out now by thawing, plain enough,
and much to the credit of the driver, so that the honest
fellow entertained us for some time with a variety of
tunes, without putting his mouth to the horn - The King of
Prussia's March - Over the Hill and over the Dale - with
many other favorite tunes; at length the thawing
entertainment concluded, as I shall this short account of
my Russian travels. (Chapter VI) Travels and Surprising Adventures of
Baron Munchausen was originally written
in English (1785) by the German author Rudolph Erich Raspe
(1736 - 1794). By linking music and temperature, the
quoted story gives me a starting point for my own story. The
definition "music is organized sound" is attributed to
Edgar Varese (1883-1965), a
composer who did a lot to disorganize music by expunging
melody and harmony. Edgar Varese might be right
but noise can also be organized, and so are natural and
artificial sounds, whether pleasant or irritating. Music
is what we call music and sell as music today. Yesterday
music meant something different. Some sound
illustrations can be found at The Classical
Archives site. Let us look
at three composers, each born a century apart: Bach,
Beethoven, and Bartok. Bach, not
just revered by everybody but also admired by many,
leaves me, with a few exceptions, cold.
Beethoven is, for many reasons, the highest peak in the
evolution of music—the opinion I share. Bartok leaves
most fans of classical music cold but he is my
favorite. My choice
does not represent music as a whole because all three
are devoid of romanticism, another powerful branch of
musical evolution that I enjoy, too. I prefer music
without illusions and sugar, but I love music as a
whole, as a parallel world in which a daydreamer can
find a temporary shelter from daylight. Listening to
Johann Sebastian Bach (1685-1750) we can hear not only a
very regular rhythm but also a rather even distribution
of sounds in time. Long pauses and dissonances are
absent and sharp dynamic contrasts are rare. The music
is well organized, very regular, and even predictable
over significant segments. What is hardly predictable is
the combinatorial richness of the pieces. There are
listeners who worship Bach as the source of heavenly
peace, harmony and perfection, others as an ideal of
predictability and order, and some, I suspect, put it as
an ice pack on the bruised soul. Bach not only creates
his own universe, right before our eyes, but also the
laws for all subsequent ones. If none of the components
of music employed by Bach remains, music ceases to exist
to my ears. Ludwig van
Beethoven (1770-1827) departed from the canons. His
sound is distributed less evenly and the pauses and long
repetitions appear. His music is full of dynamic and
orchestral contrasts, complexity, heroic power and
tragedy, anxiety, longing, despair, and idealistic
beauty. It seems to comprise the full range of human
emotions ennobled by intellect, the range so wide that
nobody could ever cover his range afterwards.
Remarkably, it is still mostly ordered and regular,
despite an overwhelming number of innovations. It is
about the worldly life, but mostly above its passions. After
Beethoven there was little left unexplored in the
classical universe created by Bach. Meanwhile, the
Industrial Revolution was turning the world around, and
the historically brief but incredibly dense wave of
musical romanticism rolled over the nineteenth century
world stitched together by steamships and locomotives.
There is a relation between both, and as a seed for
another essay, I can only note that even the cast
flywheels of the early steam engines were embellished as
if the engine were Empire furniture, while it was sheer
power. By the time
of the WWI, romanticism—the music of illusions—was
gone. Bela Bartok's (1881-1945)
music, as inventive as Bach's and Beethoven's, is
nervous, dissonant, irregular, violating all the rules
of Bach's Well-Tempered Clavier. It loses a
distinct rhythm in the "music of the night" of his slow
pieces (for example, in Music for Strings,
Percussion, and Celesta), or takes an ominous
mechanical beat (for example, in Miraculous
Mandarin). The heavenly beauty and peace
disappears from Bartok's music completely, as it
disappeared from the world he lived in. The melody is
cut into short and unadorned phrases but the rhythmic
diversity is rich and intricate. While
Beethoven could find harmony and greatness in the
struggle of the individual against the world, Bartok
accepted the irreconcilable conflict, with little hope,
but no resignation. It seems to
me that Bach talked to God, Beethoven to equals, and
Bartok to himself. All three
composers left piano works of pure combinatorial
inventiveness: Bach in his Clavier and
Inventions, Beethoven in Diabelli Variations,
and Bartok in Microcosm (Mikrokosmos). None of
the three composers can be called "sweet." Mozart was
sweet or, rarely, bittersweet. Bach was
recognized as a great composer only 80 years after his
death, Beethoven's music initially was too hot
and passionate for his contemporaries after Mozart and
Haydn, and Bartok still grates upon the ears tuned to
Beethoven, Schubert, and Chopin. Dmitri
Shostakovich (1906-1975), one of the last big classical
composers, in his latest symphonies and quartets
was reminiscent of Bartok, but in general he was much colder.
I hear in his palette Bach's monumentality, Beethoven's
passion, and Bartok's dissonance intentionally combined
in almost postmodern manner. Shostakovich lived in time
of fear. Distinct
rhythm was the necessary and sufficient condition of
classical music, and it still is in folk and popular
music. At its beginnings, music was very rigidly
organized, but with time the restrictions loosened a
lot. The composer prescribes rhythm as metric pattern
consisting of sounds of different duration, accents, and
pauses. The composer also marks tempo, traditionally, in
Italian, as fast, slow, etc., and dynamic effects. There is a
curious tempo employed mostly by the romantic composers
of the period after Beethoven: tempo rubato. In Italian rubare
means to steal: duration is stolen from one note and
added to another. Rubato makes some notes
shorter or longer than the others in the bar so that the
total rhythm is preserved. Rubato,
therefore, applies not to the tempo but to its
regularity. The following two sequences symbolize
regular and rubato tempos by having the
same length but variable segments:
a
a a
a a
a a
regular The effect
of rubato is emotional tension and expressivity,
the warmth of music, typically represented by
Frederic Chopin's Nocturnes. The
irregularity, freedom of composition, fuzziness, abrupt
changes or dreamlike fluidity, swinging between joy and
sadness, positive attitude to life and its stages, rich
chiaroscuro, nuances, and warmth are typical
for romanticism and, actually, most of the music
starting from Hector Berlioz (1803-69) to Claude Debussy
(1862-1918) and Sergei Rachmaninov (1873-1943). The warmth
of the violin and cello sound, so different from the
fixed sound of piano, comes from the very design of the
violin with its smooth fingerboard that makes the sound
less predictable. The performer places his or her
fingers with spontaneous or deliberate variations. This
variability of the sound is widely used for expressive
effects. One of them is vibrato, when the sound
fluctuates around a certain tone due to wavelike
movement of the finger. Glissando, the
continuous sliding of the finger between two tones, can
imitate human groan or shriek of joy. The human
voice is the richest instrument, completely devoid of
any fixed ordering, but not all singers are able to use
the dramatic possibilities of its chaotic potential when
technical difficulties and exertion divert most of the
energy. Here are
some notes of teachers of music about rubato.
How
then, can it possibly be taught? It would be impossible
to devise rules for the introduction of rubato for all
students or predict when the first magic moment of
stretching for expressive purposes might
occur. ( Miriam
Byler ) Rubato is not a mathematical
concept and cannot be taught by mechanically adding to
one note and subtracting from another. The purpose of
rubato is to add expression to the music. The key for
teaching this concept is the imagination. Each student
has different life experiences, background, exposure to
the arts, and level of sensitive listening. These either
help or hinder the student's ability to imagine.
(Sue
Shannon ) But of
course, rubato is a mathematical concept: it
means increasing entropy of a temporal sequence. It
means relaxing control over tempo, increasing disorder,
and making music less predictable. This is what
typically happens with somebody experiencing strong
emotions, anxiety and agitation, with a nation in a
turmoil, government in a scandal, outraged community,
disgruntled employee, collapsing political structure,
automobile tire manufacturer with loose quality control,
disorderly football fans after their team wins, economy
that had lost ground, a lover having discovered
betrayal, and any physical system when temperature
rises. In Joseph
in Egypt by Thomas Mann, Joseph learns about the
interest of Potifar's wife in him. Joseph's
heart—that
heart which Jacob, far away, believed long stilled in
death, whereas here it was in Egypt, ticking on and
exposed to all perils of life—that heart stood a moment
still, then, as a heart does, throbbed the faster in
order to overtake its lost beats. (Volume
2, Part The Smitten One, Chapter Threefold
Exchange) Rubato
means that the temperature of the tempo goes up.
Of course,
we have to be careful while attributing chaos to a
performance. A trained performer can imitate chaos in a
cold calculated way. Actors of the silent movies
substituted the broken, jolted and exaggerated facial
expression and gesticulation for the absent speech. A
cursory lover moves in a metronome-like mechanical
rhythm, while a refined one improvises variations of the
meter and tempo. Computer, like a skilled performer, can
only imitate chaos, but I swear that the Microsoft
software that I use has some leftovers of authentic
human chaos in its nooks, like any rigid, totalitarian,
expansionist, and monopolistic system has. Well, bugs
are not a Microsoft monopoly, to be honest. In general,
the history of arts can be interpreted as a constant warming
up to the temperature when the order dramatically drops:
the melting point (see Essay 11). What is cold
and what is hot? We use
GREAT, BIG, SMALL, and TINY with a comparable range
of nouns but there is always a potential number
behind the adjectives of size. BIG success means that
there is a large number of positive press, sales,
attendance, profit, and small number of accidents
and misfortunes of any kind. These qualities are
measurable. Speaking
about emotion, desire, enthusiasm, interest, deal,
stock, news, art, feeling, sex, color, debate,
character, etc., we use the adjectives HOT and COLD in
situations where no thermometer would work. What number
stands behind the metaphorical heat and cold?
For most of my
life I believed that temperature was one of the cardinal
properties of individual and social life and not just a
lexical usage. My personal problem with temperature is
that I am not an expert in physics and mathematics. As
an excuse, I am looking at the temperature outside
physics. A possible good side is that I can find
common language with others like myself. The last
half of the twentieth century was spent by some
scientists in search for a general theory of complex
systems, usually called systems theory, a difficult and
fuzzy topic that I would not touch here. The word
"systemic," however, is a convenient identifier for the
temperature I have in mind (although it has a particular
meaning in medicine). I
believe that very complex systems, for example, humans,
whether taken individually or as society, are not good
objects for complete scientific description. The
number of human situations and circumstances is enormous
because of their combinatorial nature (see Essay 12).
Yet there is a lot of built-in order in human behavior.
It may seem
that the more order, the easier to describe a complex
system, but the following example may perhaps illustrate
the arising problem. Suppose, we have separate
statistics of house purchases and marriages. We could
calculate the probability of the combination of marriage
and house purchase by multiplying the probabilities of
both. The trouble is that this can be done only for
independent events. To find out whether they are
independent or not, we have to compare three
probabilities: two separate and one combined, which
would make our original intent senseless. This is why
we read fiction, memoirs, and biographies: human life is
described in them, presumably, as it is, although with
most minute detail omitted. True, it can be very far
from reality. Nevertheless we can clearly see typical
human collisions even in science fiction. I believe
that analogies and metaphors can help understand complex
systems. They are major tools of literature and I see no
reason why they should be banned from use along with
standard scientific approach to aspects, mechanisms, and
patterns of human existence. Temperature is among them.
We enter a
cold room and turn on the heater. The room thermometer
shows the rising temperature because the molecules of
air beat against its surface and transfer part of their
energy to the liquid in the bulb. The liquid expands and
its level in the capillary tube changes. This goes on
until the thermometer receives as much energy from
molecules as it gives it back, i.e., until equilibrium
is reached. The nature of temperature is, therefore,
energy. Temperature can be measured in units of energy.
Since the mass of molecules does not change, their
energy depends only on their speed. The faster they
move, the more often they bump into the thermometer and
each other. I do not
know what energy is and I am sure nobody can give a
universal definition. It is so fundamental that cannot
be defined through other things. On the contrary, we can
define a lot of properties through energy. We know that
energy never disappears and never comes out of nothing.
We can measure its change. We can separate the
change of energy into two components: change of order
and change of chaos. I start here
with understanding temperature as a measure of average
energy of chaotic events in the system. Thus presented,
temperature loses all its specific physical flare except
for the word “energy.” Instead of energy we can use the
word "effect." For example, the temperature of the
religious, political, environmental, feminist, anti-war,
or any other movement can be measured by the frequency
of demonstrations multiplied by their intensity and
degree of violence. The temperature of the Middle
Eastern region is the frequency of conflicts
multiplied by their gravity. The temperature of an area
of scientific research is measured by the frequency of
publications multiplied by their novelty. As
individuals, we measure the temperature by the
information that bombards the bulb of our brain. Unlike
thermometer, our brain is what is called an open system:
we can lose part or all information next day or even
next minute. For the people in the Middle East, however,
the input can exceed the loss, and the overheated brain
turns to action. The bulb of
the Congress, bombarded by demonstrations and lobbyists,
finally reaches the legislative point of no return. A
hot research area, on the contrary, may lose steam
because the nature finally has little to demonstrate. The
temperature of love may manifest in the number of gifts
and their value. It can be also read from the number of
the escapades of the lovers and their eccentricity. Or,
if you wish, from the frequency of letters and their
length. In a hypothetic case that the number and
length is pre-arranged, the temperature is the rubato
of the correspondence: the chaotic variations of the
order. With humans, everything is vague, ill-defined, and fuzzy, but this is why for anything BIG we need intelligence, hard work, and luck in this life. It takes energy to order chaos. With molecules, everything is simple.
The Figure
on the right illustrates what happens with molecules of
gas when temperature changes from 0ºC to 900ºC to 2100ºC
: the higher the temperature, the higher the
spread of the distribution of energies of individual
molecules, the larger the distance between the slow and
fast molecules. We cannot
apply observations of molecules to people because life
and society are open systems far from equilibrium. We
can only draw metaphorical parallels. When it is hot,
more of population gets to the extremes, so to speak.
The population builds up an army of high energy
individuals capable to change the system. When it is
cold, the society consists mostly of the middle range
units, which was, probably, the idea of egalitarian
socialism.
This is how I would describe the temperature of a complex dynamic system in metaphoric (and not scientific) language: it is the range of spontaneity of events. A zero variability means zero temperature. Temperature is not a measure of order or disorder in the system but the measure of the effort needed to achieve an increase of order. At low temperature, little energy may be needed to maintain order, and at a high temperature, same energy can create less order. In statistics, the spread of distribution is measured by variance and standard deviation, but I would like to keep the distance of a metaphor. The words temperature,
tempo,
and Bach's well-tempered come from the same
Latin root meaning the measure of proportion or doing
the right thing at the right season. Temperature is the
measure of doing the wrong thing at the wrong season,
but only if you know what is right. The power of
analogy lies in both similarity it reflects and the
difference it is aware of. The difference between
society and gas is fundamental, but to explain it would
take a lot of dry science. Anyway, the parallel between
the physical temperature and the social temperature that
I am drawing is limited. The reason for this is
not an absence of general theory of abstract temperature
—statistical mechanics is such theory—but the difficulty
of defining real live models:
because of their complexity I wish to stay
at the level of metaphor which, unlike analogy, does not
even assume any difference. It is simply a link, like in
hypertext, and the link may be flawed, irrelevant, or
non-existent. Why metaphor works is a separate topic
(see Essay 10). We can part with
the household thermometer here. We can monitor the
temperature in the Middle East with the clock or
calendar, recording the number of reports in the unit of
time. The only condition of measuring temperature
with the clock is that events are not completely
predictable. There is no
temperature without chaos. If the US Congress convenes
according to the schedule, it does not matter what the
schedule is. But any extraordinary session may mean
heat. Our life is
highly ordered in time. Everything is scheduled and
organized. We expect a certain predictability of life,
without which no happiness is possible. Is there any
chaos in sunrise and sunset? No, the solar system
is very cold on the human time scale and rarely
disturbed. But the global weather is heating up, judging
by the rising frequency
and extent of catastrophic damage. The human
activity is blamed but I have never seen any estimate of
the price of scaling it down and paying for the global
systemic air-conditioner. Regular,
expected, and repeated events have their share of chaos,
too. It is difficult to evaluate the temperature of
major airlines. The delays have become so predictable
that we may see it as cool. The TV schedule is
disregarded during major sports events, which is
predictable and means no warming. We adapt to the
systemic temperature as we adapt to atmospheric one. But
it tells us something about the price of order during
the warm-up: it is beyond anybody's means. Western art,
apparently, has melted down in the twentieth century. It
does not point to any catastrophe because of the memory.
The entire history of art is preserved in museums and
libraries, and performance art flourishes, but the
liquid postmodern culture means that in the ocean of
supply one can attract attention only by making big
waves and loud screams. In a solid,
cold authoritarian society, like in an ice cube, an
individual could establish direct contact only with a
narrow circle of other people. In the modern warm and
liquid society, like in a spoonful of water, one can,
theoretically, bump into anybody. The Internet is
regarded as a universal solvent. The same theory,
however, tells us that everybody is lost in a global
crowd, unless one has enough energy to freeze the liquid
around and to build an island with a lighthouse, a
bullhorn, and a big paddle to make waves. In the
systemic global warming, the tribal cultures of the
tropics offer cool shade and anything solid, except
human nature, is made of ice. NOTES
1. The so-called zeroth law of thermodynamics does not define temperature but provides a relation for ordering it. This essay avoids the problem of a contact between different systems and considers only the change of temperature in a single system over time. The problem of interaction could be a topic for another essay. Sufficient to say that the art of an epoch tends to come to an equilibrium with its larger environment.
3. (2016) Energy
is what does not change when something changes in a closed
system. But closed systems do not exist in nature.
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2016 Essays 1 to 56 : http://spirospero.net/essays-complete.pdf Essays 57 to 60: http://spirospero.net/LAST_ESSAYS.pdf Essay 60: http://spirospero.net/artandnexistence.pdf |