Frederic Chopin:

Some modern commentators have argued against exaggerating Chopin's primacy as a "nationalist" or "patriotic" composer. George Golos refers to earlier "nationalist" composers in Central Europe, including Poland's Micha Kleofas Oginski and Franciszek Lessel, who utilised polonaise and mazurka forms. Barbara Milewski suggests that Chopin's experience of Polish music came more from "urbanised" Warsaw versions than from folk music, and that attempts (by Jachimecki and others) to demonstrate genuine folk music in his works are without basis. Richard Taruskin impugns Schumann's attitude toward Chopin's works as patronizing and comments that Chopin "felt his Polish patriotism deeply and sincerely" but consciously modelled his works on the tradition of Bach, Beethoven, Schubert and Field.

Please answer a question about this article. If the question is unanswerable, say "unanswerable". Who said Chopin's works were modeled after Bach, Beethoven, Schubert and Field?
Richard Taruskin