"Joachim had a very long arm and when he played at the point of the bow his arm position was approximately the same as that of the average player at the middle of the bow. Willy Hess was a perfect exponent of the Joachim method of bowing. Why? Because he had a very long arm. But at the _Hochschule_ the Joachim bowing was compulsory: they taught, or tried to teach, all who came there to use it without exception; boys or girls whose arms chanced to be long enough could acquire it, but big men with short arms had no chance whatever. Having a medium long arm, by dint of hard work I managed to get my bowing to suit Wirth; yet I always felt at a disadvantage at the point of the bow, in spite of the fact that after my return to the United States I taught the Joachim bowing for fully eight years.
"Then, when he first came here, I heard and saw Ysaye play, and I noticed how greatly his bowing differed from that of Joachim, the point being that his first finger was always in a position to press _naturally_ without the least stiffness. This led me to try to find a less constrained bowing for myself, working along perfectly natural lines. The Joachim bowing demands a high wrist; but in the case of the Belgian school an easy position at the point is assumed naturally. And it is not hard to understand that if the bow be drawn parallel with the bridge, allowing for the least possible movement of hands and wrist, the greatest economy of motion, there is no contravention of the laws of nature and playing is natural and unconstrained.
"And this applies to every student of the instrument, whether or no he has a long arm. While I was studying in Berlin, Sarasate played there in public, with the most natural and unhampered grace and freedom in the use of his bow. Yet the entire _Hochschule_ contingent unanimously condemned his bowing as being 'stiff'--merely because it did not conform to the Joachim tradition. Of course, there is no question but that Joachim was the greatest quartet player of his time; and with regard to the interpretation of the classics he was not to be excelled. His conception of Bach, Beethoven, Mozart, Brahms was wonderful. The insistence at the _Hochschule_ on forcing the bowing which was natural to him on all others, irrespective of physical adaptability, is a matter of regret. Wirth was somewhat deficient in teaching left hand technic, as compared with, let us say, Schradieck. Wirth's real strength lay in his sincerity and his ability to make clear the musical contents of the works of the great masters. In a Beethoven or Spohr concerto he made a pupil give its due emphasis to every single note.