Sheet music, not sound: javac writes the score, every JVM is an orchestra that plays it.

The compiler does not aim at your processor. It aims at an imaginary machine, the JVM, and stores those instructions in a file with the .class extension. Each operating system has its own JVM that translates them at run time. The analogy bends in one place: the JVM is real software you must have installed, not just an idea.

Read it once, then a question tests whether the trick stuck.