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.