At early levels, you can "get away" with technical problems if you have strong enough intentions. Sadly, no such thing happens later down the line. As soon as that student is attempting a Chopin study, the problems will come to the forefront.
A few years down the line, if you're asking that student to execute a rapid pianissimo scale that is executed legato without pedal, and without bumps or holes, you can forget it. And if you've trained that student to be self-critical, it's only going to make their frustration at inability to do what they intend to a good deal worse.
The student you describe "gets away with technical problems" is someone who is poorly taught. It doesn't matter how good your student has been taught , when they attempt a Chopin study there going to have problems

It is an etude so its difficult for a reason.
My students are taught about relaxation of the hand, thumb hanging down from the first lesson. I cannot speak for other teachers but yes if you do not teach technique your student will have problems in anything you play particuallry an etude. I agree with your statement about balanced teaching musicality and technique but from your statement you concentrate a great deal on the technique.
I have never seen a student who can "execute a rapid pianissimo scale that is executed legato without pedal, and without bumps or holes" who has not done it before. THe student needs to be taught that specific technique, it cannot be acquired while your learning Mary had a little Lamb.
Self- critical is such a negative word. I would never want to a student to be overly critical of their playing. I would want to be objective, assess their playing, come up with solutions, learn from other sources. The only way to do that is by listening to something, thier playing or someone eles playing. Sorry thats the only way to do it. They should be taught to listen for what is good about their playing and what needs improvement on.If you feel teaching students to acknowledge there are problems in their own playing will make them critical I cannot help but thing somewhere down the line there was bad music teacher who put you througt that. Good teachers do not focus on just the negatives but should praise the improvements.
I'm talking about how much more goes into the balanced whole than the idea that you just "listen" and then find the means. Above all, I am pointing out that developed "listening" skills are the result of balanced training- rather than anywhere near as much about the actual listening as people think.
I completely agree with this statement. I personally feel the concept of developing the ear is under-appreciated in teaching today. There is a greater emphasis on performance rather than aural understanding of music. Very few kids go into music lessons and learn to improvise, compose, and develop music understanding. Instead their pushed on to the stage to perform recitals to prove they have learned. I say this because none of the students I have taught have ever been taught to do anything by ear. Technique is easy to teach. Its say hold your wrist up, sit up straight , its a C#, and often the good stuff is left to way side. Technique is the front door to musician ship and can not be de-empasized but musicality is a real element often lacking.
Listen to what? Your teacher's demonstration? Elsewhere you argued against total dependency on that (absolutely rightly- that really wasn't what I was arguing for at all). You just said you have it BEFORE. So how could "listening" play a role before you even made a sound? It's not about the listening. The listening is the means of assessment. If you have a sound image in your mind, you have something to compare the results to AFTER you attempted it.
You listen to your teacher's demonstrations. The teacher provides the first sound and the student models it. In order for the student to model it they have to listen to sound. I thought that was clear? Anyways, listening can be a role of assessment and more importantly prevent potential mistakes. The key is the sound image is of your teacher ( a good model) and then your compare it to. A lesson that taught where the student plays something and the teacher assesses is called coaching not teaching. If it was taught to the student already, the teacher should play the correct version , the student Listens , student changes behavior. If the behavior is not changed the teacher may use verbal instructions or a technical excercise to fix the issue.
A lesson that is structure where the student plays around on the piano while the teacher watches and says listen to something is not good teaching, but isn't that obvious?
Also, the means of correction is not directly part of listening. You have to think note x was too loud, or not enough legato etc- based on comparison to what you want. Then you have to think HOW can I correct that? That's not from listening. Listening only told you that it's needed for you to make a correction. The adjustment comes from knowledge, technique and experience. To say listening will fix problems is just absurd- unless you already developed the overall package well enough for instincts to cover the rest.
You said If you think note x was too loud or note enough legato you corrected it "based on comparison to what you want". The comparision comes as a result of LISTENING TO A MODAL . Notice how this listening word keeps coming up again and again. You said the adjustment comes from knowledge and experience. What is one way you get knowledge and experience? Yes you can get it by doing ( which is really important) but you can get it be the big bad L word. This might help
Listening --->knowledge and experience---> identify problem in one's playing-----> fix problem in one's playing( can be done by listening and technical understanding)
Before you know what you want, what you hear yourself doing is what programs your expectations. That's why students with big technical problems may have no way of listening to the faults. They've heard themselves do them too many times. A habitual fault can spoil (what is called) the "listening". Correction at source would have allowed the student to grow used to hearing an altogether better execution- developing their internal musicality rather than spoiling it. It's easy to forget how much of the inner intention is built up from YOURSELF- rather than from what you hear others do. A technical problem can be absolutely disastrous to the inner musicality.
Wait a minute so your saying if a student LISTEN to him or herself play incorrectly, a student would grow to accept faults in their playing. Sounds like listening is really important I can agree to that

Sounds like we have a what came first the chicken or egg senerio.
Which fault came first a technical fault or a lack of listening fault?
If a student is taught by a good teacher, good habits would be in grained from the very beginning and there should be no faults to accept because the teacher would guide them to play with out faults.
If a student is self-taught and they developed bad habits ( seen a lot of that) then yes the student is going to need a teacher of great technical know how more than musicality training. I feel sorry for this student. You are right, student will not be able to achieve their inner musicality.
These are two different students and one should not be mixed up with the other. It does not meaning learning to listen is not a critical first step. I argue if the second student had a good teacher and a model of how the instrument should sound ( by listening ) and why whatever technical fault is unmusical and potentially harmful in the future the student would not have that issue. Listening comes into late to save the day but it does not mean it is not a hero.
A conductor may regularly sing to a musician as a demonstration. But he would equally expect to have a musician grasp an intellectual explanation of a phrase. There's nothing to compare listening to but the concept, in those cases. Also, conductors regularly choose bowings- rather than say "find me a bowing to give this type of sound". It's a technical issue, given to provide a musical result. Arguably, choice of fingering is often analagous to bowing decisions. A good fingering often takes you half-way towards the musical execution- whereas a bad one takes you a hell of a way from it.
Without either a concept of how to execute a phrase, or something to listen to and copy, what's left? What are you comparing your listening to?
You need a musical concept as a goal for a technical result. You gain musical concepts through listening to other music not by listening to someone explain technique. You are right that you need the technique but you need the musical concept to be able to choose the technique( fingering, and bowing). You can find many examples of people with a whole much of technique and lack of musicality and the music is left unsatisfying.
You seem to think if you have technical skills you are able to play musically. While this is true, without the musicality you do not know when to use these techniques (trust me I see it all the time) Technical players that can play wonderful runs of scales in Chopin but have issues with rubato, phrasing, knowing when to cresendo. Try explaining rubato in technical terms without playing an example.
Good teachers don't ask for better listening, they INSPIRE it to occur.
I argue that good teachers make there students better listeners without their being aware of it through a variety of ways. You right they don't ask for their students to be better listeners, they just make them do it. And now you say you agree that listening should be part of a balanced lesson but early you said "Does saying "listen" have any real value? I'd say it has scarcely more than zero (except in a few extreme cases)". I hope you starting to come around to fact listening has more than scarcely more than zero amount of value. i would say it should be around 45 to 50 percent because it determines the technique you need.
I had not suggested that. I said TELLING students to listen has scarcely more than zero value. It amounts to looking at the symptoms, not the root of the metaphorical illness. It's as good as a doctor telling a patient they're ill and sending them off to cure themself.
"Our craft is an aural craft so unfortunatly we can seperate our ear. You are right again when you say "The best teaching should inspire listening to constantly occur of its own accord".
"
This is my primary point. I think you misunderstood what I was meaning by a lot of the other things.
A lot of technical problems would best be compared to a lisp. Listening is futile. Such cases are solved with training from an expert- not in "listening" to pronunciation but in the means.
Finnaly at the end. Amen to that. Fix the causes not they symptom. I would argue lack of aural model is the cause of most technical impediments. Of course some people have lost a limb or a finger or have artritis so that is a different. In the beginning you did not diffecite between telling students to listen and saying whether listening was important in general. Most of your argument was based on technique and arguing the lack of importance of listening. If that was not what you meant I am sorry to if is misunderstood you.
Lisp can be physical or it can be solved through speech therapy( like me!). Depends on the person but some deaf people talk with a lisp because they cannot hear models. Some talk because of physical difficulties but most lisps are easily treatable, I am proof by someone who knows the physical actions of speaking, what the sounds are, and more importantly how to teach it. The translation to music is the teacher needs to be technically effiencent , muscially sound and more importantly know how to teach it. My point is being musically defiecient is still decient in some aspect.
Jeez, anyone prepared to wade through all that?
Unfortunatly I will. I like debates. My quest is for wisdom so I like to see if my philosophy is flawed or not.
Not me.
I would complete at least 4 Hanon exercises in the same time.
Thal 
Hanon=bad

, Schumann, Beethoven, Mozart, Bach= good
