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 in popular culture appearance on the cover of "The Whole Earth Catalog". Noting that images of the entire planet recur several times in "A Space Odyssey", Jacobs writes: In August 2011, in response to Apple Inc.'s patent infringement lawsuit against Samsung, the latter argued that Apple's iPad was effectively modeled on the visual tablets that appear aboard spaceship "Discovery" in the "Space Odyssey" film, which constitute prior art. "Siri", Apple's natural language voice control system for the iPhone 4S, features a reference to the film: it responds "I'm sorry I can't do that" when asked to "open the pod bay doors". When asked