I know of somebody who would purposely serve his child's dinner with all of the different portions of food scattered around the plate, touching each other, mixing into each other, and, on top of that, would sometimes strike up an argument with his wife at the dinner table, just to see if his little boy would react by putting all of his food in order to deal with the chaos.
Maybe piano teachers should do something like that. Serve everything up in some kind of confusing and disorderly way, and then on top of it, create chaos all around just to make a student resort to the piano and music as a form of order

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At first the little boy actually organized his plate because he was sensitive to the situation and, out of love for his father, took the cue, but he eventually stopped out of love, as well, because it was a repetitive rut. He wanted to open the possibility for a higher understanding between them.