Aesthetics are intriguing. Beauty may be in the eye and ear of the beholder, but it must have a basis, perhaps even a function, deep in the neurons of our central nervous system. Recently I ran across an interesting assertion: According to one source, “The optimal percentage of redundancy for the perception of beauty by the human brain is 20%”. Twenty percent. A sort of “Golden Mean” of aesthetical repetition. This implies that people are attracted to something that repeats itself frequently, but not to excess. Perhaps when my children imply that my conversations repeat themselves, maybe what they really mean is that my verbal redundancy has reached an unaesthetic 40% level.
The beauty of moderate redundancy actually makes a lot of sense. People tend to say “I know what I like”, but they really mean “I like what I know”. Our brains seem to feel happiest when novel stimuli are balanced with the familiar. In the visual arts, repetition is a frequent theme: a row of white aspen trunks, a trio of babies in flower pots, or multiple spots of scarlet in a painted abstract resonate with our visual cortex. The Redundancy Rule gives us a mathematical means to evaluate art; on the next visit to the Seattle Art Museum, you can nod knowingly to an art patron nearby and note “I like it, but with 10% more redundancy I think it could be a masterpiece”.
Repetition is a vital part of music. A small group of notes played in sequence becomes a motif, and this motif can be varied and repeated to build a beautiful composition. The trick is to find just the right amount of repetition. When I listen to jazz musicians of varying levels of expertise, it is evident that novice players often “wander around”, playing lots of different notes that are technically correct (according to the chords and scales of the tune), but not very appealing. A great player can say more by repeating and inverting a phrase of just a few notes than the inexperienced player expresses with a constant stream of unrelated musical phrases. More redundancy may be the difference between the beautiful and the banal.
The general concept of incorporating just the right amount of musical redundancy sounds like a good recipe for beautiful composition or great improvisation, but it raises a number of questions.
At what level(s) does this redundancy take place? By my calculation, a tune in AABA format (typical of many standards, which consist of an 8-bar melody, a repeat of that melody, a different 8 bar tune, and then a repeat of the original 8 bars) would contain an overall redundancy of 50%, since half of the song consists of melody that has already been played. Too much? On a much finer level, individual notes might be repeated without being recognized as redundant. (An old bandstand joke: A listener asks “Do you know how to play Stardust”, to which the bandleader replies “No, but we can play Bye Bye Blackbird, and it has a lot of the same notes in it”).
If we were to strive for that ideal 20% redundancy, which musical elements are eligible for repetition? Rhythm is just as important as pitch, after all. If we use entirely different pitches, but play them in the exact same rhythm as the previous musical phrase, is that 50% redundancy? Tone and timbre are also essential parts of music; if the trombone comes in and plays the exact same phrase as the guitarist just played, is that 100% redundant, or just (some might say) 100% unnecessary?
And where does that leave us with Free Jazz? There is no reason why totally free improvisation can’t utilize the perfect proportions of repetition and variety, but many jazz experimenters seem to avoid repeating themselves. Perhaps that is why even the free jazz players are heard to remark that the music is more fun to play than to listen to.
I thought of closing this blog by simply repeating the first paragraph of this essay for an aesthetically redundant effect, but that might make the whole subject (some might say) 100% unnecessary.
Friday, December 11, 2009
Sunday, November 29, 2009
RUN AND PLAY:
Learning to play music is hard. In my readings about the brain and how it functions, I am always looking for a shortcut to faster musical progress. When I read in Oliver Sack’s book “Musicophillia” about a non-musical physician that became a classical pianist and composer after being struck by lightening in a phone booth, I hung out around phone booths hoping for a hit. In Seattle, however, you are more likely to be struck by an expresso cart than by a bolt from the blue.
A more realistic path to musical enlightenment is found in the new brain research detailed in John Ratey’s new book, “Spark: The Revolutionary New Science of Exercise and the Brain”. This is a must-read for anyone who cares about their brain. The short version is that aerobic exercise releases chemicals in the body and brain that produce more brain cells and improve the functioning of the nerve cells that are already there. The first responders after moderately intense exercise are the neurotransmitters, serotonin, norepinephrine, and dopamine. They may sound familiar, since your anti-depressant medication is probably directed at increasing one or more of these chemicals. It has been shown for some time that exercise does at least as well as Prozac in treating depression.
The “new science” that makes this book exciting involves a variety of “growth factors”, including insulin-like growth factor (IGF-1), vascular endothelial growth factor (VEGF), and the coolest of all, brain-derived neurotropic factor (BDNF). Together these factors create new brain cells and new connections between the neurons in the brain.
The practical application of this brain chemistry is simple to test: have people (or rats) take tests of memory, cognition, or creativity, with or without sweating first. The results are consistent and significant; exercise improved scores on most types of test by 20%. Now this gets my attention!
In addition to improving these useful brain functions, aerobic exercise helps with depression, ADHD, PMS, and addictive behavior. There is a lot of ongoing research in this area; this week a study was released in which monkeys were given a drug that causes Parkinson’s-like shaking. The sedentary “cage potato” monkeys developed nerve damage and muscle tremors, but the monkeys that were trained to run on a treadmill had little or no ill effects.
The medical part of me finds this fascinating, but the musician part grasps the practical implications. Practice should be most productive if done within several hours after a good workout, and perhaps a run later in the day before an important gig would be a great idea. Maybe premedicating with a big shot of serotonin and brain-derived neurotrophic factor is just what my playing needs.
Learning to play music is hard. In my readings about the brain and how it functions, I am always looking for a shortcut to faster musical progress. When I read in Oliver Sack’s book “Musicophillia” about a non-musical physician that became a classical pianist and composer after being struck by lightening in a phone booth, I hung out around phone booths hoping for a hit. In Seattle, however, you are more likely to be struck by an expresso cart than by a bolt from the blue.
A more realistic path to musical enlightenment is found in the new brain research detailed in John Ratey’s new book, “Spark: The Revolutionary New Science of Exercise and the Brain”. This is a must-read for anyone who cares about their brain. The short version is that aerobic exercise releases chemicals in the body and brain that produce more brain cells and improve the functioning of the nerve cells that are already there. The first responders after moderately intense exercise are the neurotransmitters, serotonin, norepinephrine, and dopamine. They may sound familiar, since your anti-depressant medication is probably directed at increasing one or more of these chemicals. It has been shown for some time that exercise does at least as well as Prozac in treating depression.
The “new science” that makes this book exciting involves a variety of “growth factors”, including insulin-like growth factor (IGF-1), vascular endothelial growth factor (VEGF), and the coolest of all, brain-derived neurotropic factor (BDNF). Together these factors create new brain cells and new connections between the neurons in the brain.
The practical application of this brain chemistry is simple to test: have people (or rats) take tests of memory, cognition, or creativity, with or without sweating first. The results are consistent and significant; exercise improved scores on most types of test by 20%. Now this gets my attention!
In addition to improving these useful brain functions, aerobic exercise helps with depression, ADHD, PMS, and addictive behavior. There is a lot of ongoing research in this area; this week a study was released in which monkeys were given a drug that causes Parkinson’s-like shaking. The sedentary “cage potato” monkeys developed nerve damage and muscle tremors, but the monkeys that were trained to run on a treadmill had little or no ill effects.
The medical part of me finds this fascinating, but the musician part grasps the practical implications. Practice should be most productive if done within several hours after a good workout, and perhaps a run later in the day before an important gig would be a great idea. Maybe premedicating with a big shot of serotonin and brain-derived neurotrophic factor is just what my playing needs.
Friday, July 24, 2009
One of the popular historical pastimes of the 21st century is to guess what psychiatric disorder various famous people suffered from. Joan of Arc? At the very least she had severe migraines, based on her drawings of visions of the "City of God", which look remarkably like the fuzzy circular "scotomas" of these crippling headaches. Saint Paul? Temporal lobe epilepsy seems a likely diagnosis, based on that Road to Emmaus episode. Any famous Russian novelist? Clinical depression seems to be the norm for these writers. Abraham Lincoln and Winston Churchill? Depression, with a silver lining: depressed individuals often are at their best when a huge crisis looms.
Jazz musicians are a fertile subject for this post-humous mental diagnosis. In many, it is hard to tell if they had an underlying mental illness because they were primarily known for the abuse of hard drugs: Charlie Parker, Stan Getz, Chet Baker, and myriad others. Thelonius Monk was definitely a candidate for psychoactive medications; to me, his bizarre twirling during the solos of other musicians sounds like he was autistic, although other explanations have been offered. Monk's unique compositions even have some of the characteristics of drawings by autistic savants: angular, logical, and seeming to emerge in a finished, complete form rather than being gradually developed.
I am pondering these thoughts because I recently read Wynton Marsalis' new book, "Higher Ground". In his descriptions of famous jazz musicians, he laments the fact that John Coltrane, revered as the postmodern god of the tenor saxophone, was a severe obsessive/compulsive. According to Marsalis this was a tragedy, as it drove away other musicians that tired of his long, intense solos, and it alienated all but the most dedicated jazz listeners.
On the one hand, OCD seems to explain Coltrane's behavior. One of the reasons that he is so revered is that his practice habits were legendary. As a young man, he could be heard playing his scales even as he walked down the stairs to breakfast. He had a noiseless saxophone that he would take on airplanes so that he could practice in the restroom (try that now!). Even his soloing embodied a compulsion to express every melodic idea possible. When Miles Davis asked him why he soloed so long, Coltrane said "I still had something to say, and I didn't know how to stop". In his growly voice, Miles responded "Just take the #@*# horn out of your mouth".
If we accept the notion that this titan of Avant Garde jazz suffered from an obsessive/compulsive disorder, what does that mean to those of us who saw an aesthetic spirituality in his impossible dedication to practice and his endless melodies and "sheets of sound"? Many of those obsessive characteristics actually made him into the unique musician that he was, but labeling him with a psychiatric diagnoses somehow taints the legend. When we listen to his later recordings, are we hearing a transcendent genius, or simply witnessing the final train-wreck of a mental illness?
There is a concept that we should view all forms of mental illness as simply "neural diversity", similar to the racial and cultural diversity that makes our society richer and more complex. And yet when we know someone personally with mental illness the suffering seems to outweigh any beneficial side-effects that come with it. If nothing else, this conflict suggests that we should be more conservative about medicating away those behaviors that fall outside the norm.
Listening to Coltrane's beautiful ballad, "After the Rain", you can almost hear the peace that comes when the noise of an unquiet mind comes to rest. That may be enough of an answer.
Jazz musicians are a fertile subject for this post-humous mental diagnosis. In many, it is hard to tell if they had an underlying mental illness because they were primarily known for the abuse of hard drugs: Charlie Parker, Stan Getz, Chet Baker, and myriad others. Thelonius Monk was definitely a candidate for psychoactive medications; to me, his bizarre twirling during the solos of other musicians sounds like he was autistic, although other explanations have been offered. Monk's unique compositions even have some of the characteristics of drawings by autistic savants: angular, logical, and seeming to emerge in a finished, complete form rather than being gradually developed.
I am pondering these thoughts because I recently read Wynton Marsalis' new book, "Higher Ground". In his descriptions of famous jazz musicians, he laments the fact that John Coltrane, revered as the postmodern god of the tenor saxophone, was a severe obsessive/compulsive. According to Marsalis this was a tragedy, as it drove away other musicians that tired of his long, intense solos, and it alienated all but the most dedicated jazz listeners.
On the one hand, OCD seems to explain Coltrane's behavior. One of the reasons that he is so revered is that his practice habits were legendary. As a young man, he could be heard playing his scales even as he walked down the stairs to breakfast. He had a noiseless saxophone that he would take on airplanes so that he could practice in the restroom (try that now!). Even his soloing embodied a compulsion to express every melodic idea possible. When Miles Davis asked him why he soloed so long, Coltrane said "I still had something to say, and I didn't know how to stop". In his growly voice, Miles responded "Just take the #@*# horn out of your mouth".
If we accept the notion that this titan of Avant Garde jazz suffered from an obsessive/compulsive disorder, what does that mean to those of us who saw an aesthetic spirituality in his impossible dedication to practice and his endless melodies and "sheets of sound"? Many of those obsessive characteristics actually made him into the unique musician that he was, but labeling him with a psychiatric diagnoses somehow taints the legend. When we listen to his later recordings, are we hearing a transcendent genius, or simply witnessing the final train-wreck of a mental illness?
There is a concept that we should view all forms of mental illness as simply "neural diversity", similar to the racial and cultural diversity that makes our society richer and more complex. And yet when we know someone personally with mental illness the suffering seems to outweigh any beneficial side-effects that come with it. If nothing else, this conflict suggests that we should be more conservative about medicating away those behaviors that fall outside the norm.
Listening to Coltrane's beautiful ballad, "After the Rain", you can almost hear the peace that comes when the noise of an unquiet mind comes to rest. That may be enough of an answer.
Friday, July 10, 2009
Blueberries and Prozac
Worrying about our brains is part of getting older. Am I losing it? Or did I never actually have it? They tell us that we grow a whole skullful of neurons up until about 14 years of age, and from then on we start losing them. Initially this culling process makes you smarter, but at some point you find that you can't even remember which car belongs to you in the Starbucks parking lot.
The new watchword in neurophysiology is "neuroplasticity". Brain cells can apparently reorganize themselves to meet new challenges or old neural injuries. I found it particularly encouraging when I read in several sources, including a major Scientific American article and a new book on improving brain function by Dr Restak (if I remember correctly, it is called "Think Smart", but I might be wrong) that we do in fact make new brain cells, even as aging adults. But unless these new brain cells are put to use within 2 weeks, they die off, leaving you no smarter than you were.
It turns out that bursts of new brain cells are formed in response to three different stimuli: Exercise, eating blueberries, and antidepressants. Gaining a few young neurons is enough reason to get out of bed on a rainy morning and run 5 miles. Even walking three times a week may be enough to do it. Blueberries (and strawberries and a few other colorful fruits) apparently make you smarter, even at reasonable amounts, like 1/4 cup a day. A good reason to have a few blueberry muffins after your run. And antidepressants also spur the birth of a neuron. There is some thought that Prozac and other SSRIs actually improve depression by growing back neurons in those areas most damaged by stress, rather than simply increasing serotonin levels. Stroke patients, as well as some people with peripheral nerve or spinal damage, are receiving antidepressants to help replace lost nerve cells.
This is all good news, but this is still a "use it or lose it" proposition. These cells have a short lifespan unless they are put to use, and it takes certain types of demands to make them stay around. Specifically, it appears that the brain has to perform learning that anticipates near-future events. For rats, the task was to teach them to blink exactly 1/2 second after a tone sounds, to avoid a little puff of air directed at their face. What normal activities involve this kind of anticipation? Playing video games has actually been shown to have a significant effect, especially the shoot-em-up action games. Apparently activating the survival parts of the brain primes this type of learning better than Tetris or other puzzle-type games. Fortunately, you don't have to subject yourself to 2 hours a day playing Grand Theft Auto, because playing music involves the same type of skills. We might guess that playing improvised music with a group would work best: playing jazz forces you to think quickly, look forward to anticipate the next chord change or the next accent that the drummer lays down, and draw upon many different brain areas. And sometimes that slightly panicky feeling when it is your turn to take a solo activates those fight-or-flight survival areas to sensitize the learning center.
Go to the gym, throw a handful of blueberries on your oatmeal, and go sit in with some other musicians. Maybe those new brain cells will work even better than the old ones.
Worrying about our brains is part of getting older. Am I losing it? Or did I never actually have it? They tell us that we grow a whole skullful of neurons up until about 14 years of age, and from then on we start losing them. Initially this culling process makes you smarter, but at some point you find that you can't even remember which car belongs to you in the Starbucks parking lot.
The new watchword in neurophysiology is "neuroplasticity". Brain cells can apparently reorganize themselves to meet new challenges or old neural injuries. I found it particularly encouraging when I read in several sources, including a major Scientific American article and a new book on improving brain function by Dr Restak (if I remember correctly, it is called "Think Smart", but I might be wrong) that we do in fact make new brain cells, even as aging adults. But unless these new brain cells are put to use within 2 weeks, they die off, leaving you no smarter than you were.
It turns out that bursts of new brain cells are formed in response to three different stimuli: Exercise, eating blueberries, and antidepressants. Gaining a few young neurons is enough reason to get out of bed on a rainy morning and run 5 miles. Even walking three times a week may be enough to do it. Blueberries (and strawberries and a few other colorful fruits) apparently make you smarter, even at reasonable amounts, like 1/4 cup a day. A good reason to have a few blueberry muffins after your run. And antidepressants also spur the birth of a neuron. There is some thought that Prozac and other SSRIs actually improve depression by growing back neurons in those areas most damaged by stress, rather than simply increasing serotonin levels. Stroke patients, as well as some people with peripheral nerve or spinal damage, are receiving antidepressants to help replace lost nerve cells.
This is all good news, but this is still a "use it or lose it" proposition. These cells have a short lifespan unless they are put to use, and it takes certain types of demands to make them stay around. Specifically, it appears that the brain has to perform learning that anticipates near-future events. For rats, the task was to teach them to blink exactly 1/2 second after a tone sounds, to avoid a little puff of air directed at their face. What normal activities involve this kind of anticipation? Playing video games has actually been shown to have a significant effect, especially the shoot-em-up action games. Apparently activating the survival parts of the brain primes this type of learning better than Tetris or other puzzle-type games. Fortunately, you don't have to subject yourself to 2 hours a day playing Grand Theft Auto, because playing music involves the same type of skills. We might guess that playing improvised music with a group would work best: playing jazz forces you to think quickly, look forward to anticipate the next chord change or the next accent that the drummer lays down, and draw upon many different brain areas. And sometimes that slightly panicky feeling when it is your turn to take a solo activates those fight-or-flight survival areas to sensitize the learning center.
Go to the gym, throw a handful of blueberries on your oatmeal, and go sit in with some other musicians. Maybe those new brain cells will work even better than the old ones.
Saturday, April 11, 2009
Ten Thousand Hours
It doesn't take talent, it takes practice. Studies of good and great musicians seem to indicate that the masters simply practiced for more hours. In fact, the only "talent" seems to be a talent for putting up with endless hours of practice.
What about the famous child prodigies? They must have been born with talent, right? One analysis examines the biographies of well-known musicians and composers who bloomed very early, and they found that these "prodigies" often lived early lives of intense parental pressure and long hours of practice (without TV), so that they completed as many hours at their instrument by 12 years old as other musicians did when they were 20. It was all about putting in enough hours.
When my children left for college, I decided to become a competent jazz pianist. Someone told me that 1000 hours of practice were needed to become expert, so I started my tally of hours at the keyboard. I should have had a head start: I already knew how to read piano music, and I had a solid grasp of musical theory. I had played jazz on the guitar and other instruments. I pictured myself after my thousand hours, playing casual gigs on the piano.
After 3 years, I had completed my thousand hours of piano practice, but I wasn't any good. Perhaps my 48-year-old neurons couldn't learn the way that teen-aged nerve cells could. I put in another 500 hours. I still wasn't any good, so I gave it up on my 50th birthday.
Later on I learned that the theoretical hours of study and experience needed to acheive expert status in any area is actually ten thousand. Hours totalling 416 days, 24 hours a day. Two hundred and fifty 40-hour weeks, five years of full time effort (with 2 weeks off a year). At first this number seemed unreasonable, but it roughly equals a college degree plus grad school, or 5 years at a challenging job. The Ten Thousand figure was first given to me by a young geologist, but it would apply equally well to a doctor, and athlete, or a musician.
Ten Thousand Hours: the difference between a hobbyist and a master. Those of us who like to explore new and challenging skills need to accept the fact that we will be amateurs, doing it for love and interest. Becoming a master is for the young or the unemployed.
What about the famous child prodigies? They must have been born with talent, right? One analysis examines the biographies of well-known musicians and composers who bloomed very early, and they found that these "prodigies" often lived early lives of intense parental pressure and long hours of practice (without TV), so that they completed as many hours at their instrument by 12 years old as other musicians did when they were 20. It was all about putting in enough hours.
When my children left for college, I decided to become a competent jazz pianist. Someone told me that 1000 hours of practice were needed to become expert, so I started my tally of hours at the keyboard. I should have had a head start: I already knew how to read piano music, and I had a solid grasp of musical theory. I had played jazz on the guitar and other instruments. I pictured myself after my thousand hours, playing casual gigs on the piano.
After 3 years, I had completed my thousand hours of piano practice, but I wasn't any good. Perhaps my 48-year-old neurons couldn't learn the way that teen-aged nerve cells could. I put in another 500 hours. I still wasn't any good, so I gave it up on my 50th birthday.
Later on I learned that the theoretical hours of study and experience needed to acheive expert status in any area is actually ten thousand. Hours totalling 416 days, 24 hours a day. Two hundred and fifty 40-hour weeks, five years of full time effort (with 2 weeks off a year). At first this number seemed unreasonable, but it roughly equals a college degree plus grad school, or 5 years at a challenging job. The Ten Thousand figure was first given to me by a young geologist, but it would apply equally well to a doctor, and athlete, or a musician.
Ten Thousand Hours: the difference between a hobbyist and a master. Those of us who like to explore new and challenging skills need to accept the fact that we will be amateurs, doing it for love and interest. Becoming a master is for the young or the unemployed.
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