I first heard some of these 19th and 20th century classical favorites in commercials, parades and Sega Genesis games. They’ve been used in cinema everywhere from animated crowd pleasers to cosmically scaled art films. (Try to imagine how Strauss would feel watching “The Blue Danube” soundtrack the docking of a spacecraft, nearly a century after its composition.) Music like this feels like it’s been around forever and will be around forever. They are more than compositions, they’re signifiers with time-tested power.