 This opening theme is marked by his American-influenced style.It is difficult to determine whether it comes from the typical folk music of the New World or simply from the music of the Czech emigrants, to which Dvořák liked to listen during his stay in the United States.This mix of American influence with Slavic tradition is also perceptible in the rhythm of the "alla Polacca" third movement, and in the last movement's themes native to the Far East, played by flute and oboe in unison, where the orchestra passes easily from the minor theme to the major one.