Classical music (music created by musicians who are commonly not classically trained, often from a purely oral tradition). Some composers, like Dvořák and Smetana, have used folk themes to impart a nationalist flavor to their work, while others like Bartók have used specific themes lifted whole from their folk-music origins. Certain staples of classical music are often used commercially (either in advertising or in movie soundtracks). In television commercials, several passages have become clichéd, particularly the opening of Richard Strauss' "Also sprach Zarathustra" (made famous in the film "") and the opening section "O Fortuna" of Carl Orff's "Carmina Burana"; other examples
2001: A Space Odyssey (film) of most films of the era released both as a "roadshow" (in Cinerama format in the case of "2001") and general release (in 70-millimetre in the case of "2001"), the entrance music, intermission music (and intermission altogether), and postcredit exit music were cut from most prints of the latter version, although these have been restored to most DVD releases. The following year, a United States Department of State committee chose "2001" as the American entry at the 6th Moscow International Film Festival. The film was rereleased in 1974, 1977, and again in 1980. In 2001, a restoration of the 70mm