Just as it takes time and patience to learn the nuances of French or Spanish, discovering the minutiae of music's forms of expression is a challenge for both the musician and the audience. A musical composition is like that, just times 100. Poor interpretation makes comprehension even more difficult. Inflection is to language as performance is to sheet music. When you hear words you don't understand or spoken with an accent, most music sounds like that to me.
Musicians study, then, in order to speak their language clearly, so as to be precisely understood.
There are few greater masters of this language of music than Lipovetsky. The accomplishments of his students speak for themselves. Former students have gone on to positions as diverse and prestigious as director of the Atlanta Chamber Players and as accompanist and coach for the Metropolitan Opera. Piano is designed to be played with the whole body, and students must learn to play with more than just their fingers. He is modest about his effect on his students.