"How long should the advanced pupil practice?" Professor Auer was asked. "The right kind of practice is not a matter of hours," he replied. "Practice should represent the utmost concentration of brain. It is better to play with concentration for two hours than to practice eight without. I should say that four hours would be a good maximum practice time—I never ask more of my pupils—and that during each minute of the time the brain be as active as the fingers.

NATIONALITY VERSUS THE CONSERVATORY SYSTEM

"I think there is more value in the idea of a national conservatory than in the idea of nationality as regards violin playing. No matter what his birthplace, there is only one way in which a student can become an artist—and that is to have a teacher who can teach! In Europe the best teachers are to be found in the great national conservatories. Thibaud, Ysaye—artists of the highest type—are products of the conservatory system, with its splendid teachers. So is Kreisler, one of the greatest artists, who studied in Vienna and Paris. Eddy Brown, the brilliant American violinist, finished at the Budapest Conservatory. In the Paris Conservatory the number of pupils in a class is strictly limited; and from these pupils each professor chooses the very best—who may not be able to pay for their course—for free instruction. At the Petrograd Conservatory, where Wieniawski preceded me, there were hundreds of free scholarships available. If a really big talent came along he always had his opportunity. We took and taught those less talented at the Conservatory in order to be able to give scholarships to the deserving of limited means. In this way no real violinistic genius, whom poverty might otherwise have kept from ever realizing his dreams, was deprived of his chance in life. Among the pupils there in my class, having scholarships, were Kathleen Parlow, Elman, Zimbalist, Heifetz and Seidel.

VIOLIN MASTERY

"Violin mastery? To me it represents the sum total of accomplishment on the part of those who live in the history of the Art. All those who may have died long since, yet the memory of whose work and whose creations still lives, are the true masters of the violin, and its mastery is the record of their accomplishment. As a child I remember the well-known composers of the day were Marschner, Hiller, Nicolai and others—yet most of what they have written has been forgotten. On the other hand there are Tartini, Nardini, Paganini, Kreutzer, Dont and Rode—they still live; and so do Ernst, Sarasate, Vieuxtemps and Wieniawski. Joachim (incidentally the only great German violinist of whom I know—and he was a Hungarian!), though he had but few great pupils, and composed but little, will always be remembered because he, together with David, gave violin virtuosity a nobler trend, and introduced a higher ideal in the music played for violin. It is men such as these who always will remain violin 'masters,' just as 'violin mastery' is defined by what they have done."

THE BACH VIOLIN SONATAS AND OTHER COMPOSITIONS

Replying to a question as to the value of the Bach violin sonatas, Professor Auer said: "My pupils always have to play Bach. I have published my own revision of them with a New York house. The most impressive thing about these Bach solo sonatas is they do not need an accompaniment: one feels it would be superfluous. Bach composed so rapidly, he wrote with such ease, that it would have been no trouble for him to supply one had he felt it necessary. But he did not, and he was right. And they still must be played as he has written them. We have the 'modern' orchestra, the 'modern' piano, but, thank heaven, no 'modern' violin! Such indications as I have made in my edition with regard to bowing, fingering, nuances of expression, are more or less in accord with the spirit of the times; but not a single note that Bach has written has been changed. The sonatas are technically among the most difficult things written for the violin, excepting Ernst and Paganini. Not that they are hard in a modern way: Bach knew nothing of harmonics, pizzicati, scales in octaves and tenths. But his counterpoint, his fugues—to play them well when the principal theme is sometimes in the outer voices, sometimes in the inner voices, or moving from one to the other—is supremely difficult! In the last sonatas there is a larger number of small movements—- but this does not make them any easier to play.

"I have also edited the Beethoven sonatas together with Rudolph Ganz. He worked at the piano parts in New York, while I studied and revised the violin parts in Petrograd and Norway, where I spent my summers during the war. There was not so much to do," said Professor Auer modestly, "a little fingering, some bowing indications and not much else. No reviser needs to put any indications for nuance and shading in Beethoven. He was quite able to attend to all that himself. There is no composer who shows such refinement of nuance. You need only to take his quartets or these same sonatas to convince yourself of the fact. In my Brahms revisions I have supplied really needed fingerings, bowings, and other indications! Important compositions on which I am now at work include Ernst's fine Concerto, Op. 23, the Mozart violin concertos, and Tartini's Trille du diable, with a special cadenza for my pupil, Toscha Seidel.

AS REGARDS "PRODIGIES"

"Prodigies?" said Professor Auer. "The word 'prodigy' when applied to some youthful artist is always used with an accent of reproach. Public and critics are inclined to regard them with suspicion. Why? After all, the important thing is not their youth, but their artistry. Examine the history of music—you will discover that any number of great masters, great in the maturity of their genius, were great in its infancy as well. There are Mozart, Beethoven, Liszt, Rubinstein, d'Albert, Hofmann, Scriabine, Wieniawski—they were all 'infant prodigies,' and certainly not in any objectionable sense. Not that I wish to claim that every prodigy necessarily becomes a great master. That does not always follow. But I believe that a musical prodigy, instead of being regarded with suspicion, has a right to be looked upon as a striking example of a pronounced natural predisposition for musical art. Of course, full mental development of artistic power must come as a result of the maturing processes of life itself. But I firmly believe that every prodigy represents a valuable musical phenomenon, one deserving of the keenest interest and encouragement. It does not seem right to me that when the art of the prodigy is incontestably great, that the mere fact of his youth should serve as an excuse to look upon him with prejudice, and even with a certain degree of distrust."