Tag: Motions

Finding A Balance Point

A balance point or pivot point to regulate two different motions

…so there were these two giants, and they were sitting on the ends of a very long see-saw.  And the first one said to the other: “been to any good piano recitals lately?”

Whenever any two points in the body happen to be moving at the same time,  there exists the possibility of coordinating these motions.  There is a simple way of bringing the two motions into balance with each other.  The way it’s done is through a mechanism analogous to a see-saw.  The common, reciprocal motion of the people or objects positioned at the two ends of the see-saw plank, bring these two into a controlled relationship with each other.

The two points of the body can be near each other (in the same hand, in the same finger) or further from each other (one hand with the other, a shoulder with an elbow) or still more distant (a hand and a foot, a shoulder and a finger, the buttocks and the wrists), etc., etc..

Neither of the two points on the body need to be at anatomical points of articulation.  They can be any two randomly chosen locations on the body, for instance points chosen that are midway through the length of a bone and not just at the joints at the ends of the bone.

Depending on how randomly the points are chosen, at first, though we are aware that two parts of the body are both in motion at the same time, we may assume that one motion is independent of the other.  If there is to be a relation between the two motions the two have to be separately executed, and then there should be additional eye to bringing them some sort of relation with the other.

What we want though is direct connection between the two body parts, a pre-established harmony, not a relationship that is engineered after we note the existence of the two motions.

There is an obvious advantage to dealing with one automatic correlation than two separate motions that we are additionally trying to coordinate.

Key to establishing this relation is the concept of a balance point: the finding of some point in the body, somewhere between the two body parts, which can act as a fulcrum, or coordinator, of the actions that would be brought into harmony.  This balance point need not even be within the body.

Consider reciprocal motions occurring between two adjacent fingers, such that as one finger goes down the other goes up.  And have it repeat cyclically.

If we connect the tips of the two fingers with an imaginary ‘beam’, and if half way across the beam we imagine placing a fulcrum or pivot point, we will have created an imaginary, very small sized spanning and filling the space between the finger tips. The two fingers are now like two people sitting on the opposite ends of the see-saw.  As we move the fingers reciprocally, we have the new option of visualizing the action occurring not at two different places at the same time, but only in one place.

Wherever the balance point is located, we can conceive of a shunt or connecting member that runs through the fulcrum as well as the two body parts that are to be linked.  And, as in the above case of the two fingers, to regulate the two motions of the two parts, it is only a matter of shifting our awareness away from the one or the other part, and instead into the real or imagined connecting member that possesses a center of balance where we experience both motions simultaneously.  We are no longer thinking about moving the two fingers, we moving the common connecting part.

Both end parts partake of the same overall motion.  Moreover each of the original parts find that their motion is enhanced by the motion of the other because of the regulatory beam.  The two, original, separate motions have combined synergistically.  No longer are we trying to regulate the actions of two different fingers or parts, by seeking to put them into balance.  The balance is automatic because they are just the two ends of a single motion.

We can further extend this image in our imagination.  Let the length of the two halves of the beam that connect the two parts extend beyond each part.  The beam is made longer, the two original parts are no longer at the ends.  Now at the ends of the newly expanded see-saw beam, we imagine two large people sitting down.   And if we extend the beam still further, to activate the see-saw we would require two imaginary giants working on pushing up and down at the extended ends.  In this imaginary situation the relative motion of the two original parts becomes supercharged with mechanical energy.

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Two or more notes from one physical gesture, case 1: the ratchet

The principle of the ratchet.

There is a general category of motions that is capable of producing a series of sounds from one and the same continuous gesture.   This is of special advantage when playing very fast.

One example of this group is when a motion, though single and complete, occurs in small segments.

We start with a gradual and uninterrupted forearm rotation.  This motion is then broken up into parts by suddenly forcing the motion of the arm to come to a temporary and brief stop.  The result of this stopping is that the inertia of the rotation,  like water accumulating behind a dam, increases rather than decreases the force bent on continuing the motion.

At each such stop, one note is sounded, and then the rotation is permitted to continue.   This sequence of stopping the motion and then quickly continuing it, continues until the full course of the rotation is covered.  Depending on how one divides up the motion, the overall rotation will produce a series of notes ranging from a minimum of 2 to 3 notes to a maximum 8 to 12 notes.

The virtue of this procedure is that instead of making one motion per note, we have something that is more like one continuous motion that we attempt to resist.*

Each time the overall course of such a motion is temporarily arrested, the forward momentum that has built up until that point is first diverted into the production of a new note or sound.  Once that note has begun to sound, there is no longer any need for the restraint of the continuation of the overall rotation.  The note itself has acted like a brake or stoppage of the motion.  The more this stoppage persists the more a force builds up, like water behind a dam, until the motion forces itself to spill over the blockage (the note) and continue.

I call this type of overall motion that is broken down into a series of interruptions a “ratchet” like effect, after the rapidly repeated sounds made by the percussion instrument of the same name.

In future blogs I want to discuss many other types of motions that fall into the more general category of obtaining a series of sounds from the application of one motion (a motion that is sometimes interrupted as in today’s example, and sometimes flows continuously).

If you would like a preview list of all these motions, just let me know and I’ll post them.

* Like “pumping” the brakes of the car instead of jamming the brakes to the floor.  Or like the escapement of a Swiss watch that temporarily stops the main spring from unwinding, creating the sound of a “tick” or a “tock” and then lets the unwinding of the spring continue.

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Sometimes Geometry Helps

How to get from one place to another on the keyboard.

First of two entries:

The line “subtended” by a small angle can be very long.

The two-dimensionality of the keyboard discourages us from thinking in three dimensions instead of two.  Getting from one location to another on the keyboard requires a motion that is as much up and down as it is side to side.

First, a geometrical digression.

An isosceles triangle is one in which two of the sides are equal in length.  There is no limit to how long or short the two equal sides can be.

Imagine an isosceles triangle in which the angle at the top is  where the two equal sides meet.  Imagine that the top angle being very small.  No matter how small this angle is, if you make the two equal sides long enough, the distance between those two sides will grow larger and larger.  And if the two equal sides are long enough, the horizontal base at the bottom of the triangle can be as wide as you want. For instance, several octaves on a piano keyboard.

If I need to displace my hand from where it is on the keyboard to a position on the keyboard remote from it, I try to be conscious less on a left to right motion and more of an up and down motion in the ‘third’ dimension.

My hand travels upwards first, rather than right or left, until it reaches the imaginary vertex at the top of an imaginary isosceles triangle.  Once at the vertex, I start to come back down, but on the other of the two equal sides.  At the vertex I make a very small and subtle change of angle.  It almost seems as if I am coming down the way I came up, but as I get closer and closer to the keyboard (the horizontal base of the triangle), I find that I am going to land in place on the keyboard a sizable distance from where I started.   This has been accomplished without almost any conscious sense of sideways displacement.

In a previous blog I spoke of imaginary motion versus actual motion.  Mirror neurons allow us to feel as if we are making a motion even when to the outside world we seem to remain motionless or nearly motionless.  The motion upwards to the vertex angle in the isosceles triangle can feel as if you have traveled upwards quite high with your arms before starting to descend – only the outside observer will not see much motion.  Your muscles however will be engaging as if doing the larger motion.

Sometimes it is necessary to escape into a third dimension, so that when you return just to the two-dimensional horizontal plane of the keyboard, it is “pregnant” with the mobility of having been in three dimensions.

This motion is an example of a more general heading of motions that help break out of the two dimensional confines of the keyboard.

Item Two:

The principle of the lighthouse.

Think of the beam from a lighthouse sweeping the horizon as the light rotates on a vertical axis.  While the part of the physical light itself that happens to be furthest from its axis describes a circle around the axis which is measurable in feet, maybe yards, the result of this limited motion allows the beam to travel across miles of distance along the horizon line.

Now, substitute the torso of the body for the light in the lighthouse, and the extremities of the arm as a horizon.  Rotational motion of the torso, measurable in inches, can cause the arms to travel along the keyboard a distance measurable in feet.

For any motion while playing, it is always best to find the point in the body that moves the least, but causes a motion of the hands that moves the most.  I learned this from my second teacher, Edwine Behre, who in turn learned it from Abby Whiteside.

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The Aha Moment: Muscles Working in Harmony

The Aha Moment: Muscles Working in Harmony

Rachmaninoff G Minor Prelude (op. 23 no. 5)

I think of physical habits at the piano as falling into three categories.

Category One: Movements that neither help nor hinder playing.

Category Two: Movements that facilitate and help playing.

Category Three: Movements that hinder playing.

I don’t worry too much about students regarding category A, unless their motions mask or keep them from discovering more useful motions.

I encourage or teach students any movements that fall into category B, those that facilitate playing.

At Irving’s lesson today he used a gesture that unfortunately is in the third category, motions that directly hinder the playing. It seemed to be an intentional gesture on his part, done because he thinks it helps his playing.   When we would reach the point when one would normally gently release the keys after sounding a note or chord, Irving pressed further into the keys with his hands and fingers and simultaneously raised his shoulders. I think he does the latter in order to cushion the added pressure created by the former.  He creates, in effect, an ‘aftershock’ to his sounding of notes. The result blocked the flow of energy down his arms.  He make this gesture most often when playing a difficult passage.

We managed to instill a new motion that replaced the harmful motion and moreover achieved the purpose he was trying to achieve by using the harmful motion.

I asked him to drop his arms at his sides, and to begin rocking then swinging them forwards and backwards towards and away from the keyboard.  Then I suggested that he start playing the piece again.  As he did so, I started to repeat, over and over, the mantra  “swing your arms … swing your arms…”.  Each I time I said these three syllables, I timed them to coincide with the often repeated rhythmic pattern in the piece: two sixteenths then an eighth.

He played for a while and then stopped.  In a frustrated tone of voice he said: “I don’t understand; how I can swing my arms and play at same time.  Be more specific, Joe.  Tell me how much I should move the arms, in what plane of action, using muscles in particular.”

I said: “Aha!  This is the crux of the issue.  The fact is that indeed there are too many muscles in the arms to keep track of what each one is doing.”

It is like walking.  Almost the entire body is in motion.  Many complex interactions of muscles are occurring.  Yet, somehow they are harmonized and brought into balance with each other, and work towards the common end of moving the body forwards.  If you were to try to be aware of which muscles you were using when walking you would simply cause the motion to become awkward, stilted, and un-flowing through time.  But the point is that they do work together, unbidden.  They act in harmony.

In this regard, piano playing is similar to walking.  Enumerating what to move and when will not produce a fluid motion of the arms.

Irving: “So what can we do – what do I do?”

Joe: “Since there can be no detailed answer to your question about what, and by how much, I can only reply, just trust that any attempt you make to put the arms into any sort of motion, will lead you to more fluidity and better sounding quality while you are playing.”

After a while, Irving got it.  He said: “I don’t understand how this is working, or exactly what I am doing other than thinking about motion in my arms, but I hear a difference, and I like the difference.”



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The Elbow

In terms of its use in the playing mechanism, the elbow can easily be the forgotten part of the arm.  It is remote from the hand and remote from the connection of the arm to the back.  It seems “remote from the action.” However, it is of critical importance as a mediator – a negotiator between shoulder and the fingers.  It is that which insures that energy coming down the arm is not blocked or detoured before reaching the fingers.

When tension occurs and mobility is reduced, the hidden cause often lies in the elbow.  It will often make adaptations in its alignment, not because they are useful to the transmission of power to the hands, but because we are concentrating on our hands and wish to have the hand be in a certain position.  The tension simply gets “referred” up the arm to the elbow, where we are often unaware of it.  But whether recognized or not, when there is tension in the elbow, when its freedom of movement is inhibited, we sever the free connection between shoulder and fingers.

Often the elbow is doing what it “wants” to do, but is at the service of something else.  How do we find out what the elbow naturally wants to do?  It is actually a simple procedure.  If we want to know what the right elbow is doing, use the left hand to embrace, or better, to “cradle” the elbow of the right arm.  If we now play a passage with the right hand, the cradling hand will actively sense what the right elbow wants to do, or more importantly, what it is forced to do in order to accommodate an awkward hand or wrist position.  It will notice when the elbow is coerced into making a sudden or jerky motion, usually to compensate for something occurring at the extremities.

If there is a sudden, unexpected or awkward motion in the elbow, we will want to smooth it out, or slow it down to make it flow.  By keeping in mind that the hand and the shoulder should be two stable points between which is extended the length of the arm, then the elbow modifies its alignment and attitude to find a way of sustaining this equilibrium between the two end points of the arm.  If there is a breach in the continuity of the arm, it is most likely found in the elbow because the elbow controls the motion of both the forearm and the upper arm.

Most illuminating in this regard is to play a scale or an arpeggio.

When you play a scale in the right hand, you may be surprised at what the elbow is doing as you play the scale.  It compensates for, it balances out, it supports what is happening in the lower arm and hand.  If a sudden lurch occurs in the elbow while playing the scale, it is easy to smooth out, especially if the left hand is there cradling the elbow (see above).  The supportive hand of the left arm is, figuratively speaking, saying to the elbow: don’t worry, you don’t have to make a sudden defensive or reactive gesture, because I’m here to support, balance, and give you a grounding against which to move.

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