The first movement of Four Ethereal Planes has probably what will be the quirkiest title of all four movements total. It's a loose play-on-words with the saying "apples and oranges," in which two specific ideas or items can't really be compared with each other. This is somewhat explored in the movement, but it's not the main focus.
Descriptively, "Oranges and Apples" instead creates a sonic painting of my experiences journeying on the maze-like subways of New York City. For example, to get from my NYC residence to Lower Manhattan (where my graduate school New York University is located), you would take the orange line as it's the most direct path to get there. However, as with any of the subway lines in the city, they can be unpredictable, thrilling, somewhat dangerous, and wild.
This movement takes all of this with a grain of salt, a light-hearted, humorous, and ever-changing experience with a constant sense of unpredictable motion.