article published in the New York Herald on 15 December 1893, Dvořák further explained how Native American music influenced his symphony: In the same article, Dvořák stated that he regarded the symphony's second movement as a "sketch or study for a later work, either a cantata or opera ... which will be based upon Longfellow's Hiawatha" (Dvořák never actually wrote such a piece). He also wrote that the third movement scherzo was "suggested by the scene at the feast in Hiawatha where the Indians dance". In 1893, a newspaper interview quoted Dvořák as saying "I found that the music of the negroes and of the Indians was practically identical", and that "the music of the two races bore a remarkable similarity to the music of Scotland". Most historians agree that Dvořák is referring to the pentatonic scale, which is typical of each of these musical traditions. In a 2008 article in The Chronicle of Higher Education, prominent musicologist Joseph Horowitz states that African-American spirituals were a major influence on Dvořák's music written in North America, quoting him from an 1893 interview in the New York Herald as saying, "In the negro melodies of America I discover all that is needed for a great and noble school of music." Dvořák did, it seems, borrow rhythms from the music of his native Bohemia, as notably in his Slavonic Dances, and the pentatonic scale in some of his music written in North America from African-American and/or Native American sources. Statements that he borrowed melodies are often made but seldom supported by specifics. One verified example is the song of the Scarlet Tanager in the Quartet. Michael Steinberg writes that a flute solo theme in the first movement of the symphony resembles the spiritual "Swing Low, Sweet Chariot". Leonard Bernstein averred that the symphony was truly multinational in its foundations. Dvořák was influenced not only by music he had heard but also by what he had seen in America. He wrote that he would not have composed his American pieces as he had if he had not seen America. It has been said that Dvořák was inspired by the "wide open spaces" of America, such as prairies he may have seen on his trip to Iowa in the summer of 1893. Notices about several performances of the symphony include the phrase "wide open spaces" about what inspired the symphony and/or about the feelings it