You need to have the mechanism organised so that you can feel free to express yourself - which then becomes Schubert or Beethoven or Brahms. So you must separate the technique from the music. Most of the time when we try to express ourselves we lose the sound. Therefore we lose the meaning of the music. It has to be sound that creates that feeling.'
Pinchas Zukerman gives a viola lesson to Helena Baillie on bow technique, sound production and Galamian scales.