Judicious Use of Technical Exercises
The field of music is so enormous that I have often thought that the teacher should be very careful not to overdo the matter of giving technical exercises. Technical exercises are, at best, short cuts. They are necessary for the student. He should have a variety of them, and not be kept incessantly pounding away at one or two exercises. As Nicholas Rubinstein once said to me, "Scales should never be dry. If you are not interested in them work with them until you become interested in them." They should be played with accents and in different rhythms. If they are given in the shapeless manner in which some teachers obliged their unfortunate pupils to practice them they are worthless. I do not believe in working out technical exercises at a table or with a dumb piano. The brain must always work with the fingers, and without the sound of the piano the imagination must be enormously stretched to get anything more than the most senseless, toneless, soulless touch.
Technic with many is unmistakably a gift. I say this after having given the matter much careful thought. It is like the gift of speech. Some people are fluent talkers, precisely as some people can do more in two hours' technical work at the keyboard than others could accomplish with four. Of course, much can be accomplished with persistent practice, and a latent gift may be awakened, but it is certainly not given to all to become able technicalists. Again some become very proficient from the technical standpoint, but are barren, soulless, uninspired and vapid when it comes to the artistic and musicianly interpretation of a piece.
There comes a time to every advanced pianist when such exercises as the scales, arpeggios, the studies of Czerny and Cramer are unnecessary. I have not practiced them for some years, but pray do not think that I attempt to go without exercises. These exercises I make by selecting difficult parts of famous pieces and practicing them over and over. I find the concertos of Hummel particularly valuable in this connection, and there are parts of some of the Beethoven concertos that make splendid musical exercises that I can practice without the fatal diminution of interest which makes a technical exercise valueless.