Studying the Historical Background
To exemplify what I mean, I could, for instance, refer to Paderewski's interpretations of Liszt and Chopin. During the time I was associated with the master pianist as a pupil I had abundant opportunities to make notes upon the very individual, as well as the highly artistically differentiated expressions of his musical judgment. It was interesting to observe that he played the Rhapsodies with various extensions and modifications, the result of which is the glorification of Liszt's own spirit. On the contrary, in order to preserve Chopin's spirit, the master would always repudiate any changes, like those of Tausig, for instance, by which some virtuosos pretend to "emphasize" or "modernize" Chopin's personal and perfect pianism. Differences in treatment are the outcome of deep insight as well as the study of the time and conditions under which the work was produced.
The study of musical history reveals many very significant things which have a direct bearing not only upon the interpretation of the performer, but upon the degree of appreciation with which the listener is able to enjoy a musical work. It was for this reason that I prefaced the first two recitals of my course of historical recitals given at Mendelssohn Hall, New York, during the past season, with a lecture upon the historical conditions which surrounded the masters at the time the compositions were composed.