The intention of this program is to represent one way to write a SuperCollider program. I decided to take one class, SinOsc, and use it for "everything." Here, "everything" means any function that returns a sound, or any function that directly controls a SinOsc.
In order to fill up time, I decided to employ a three-part "rounded binary" form: ABA' or "something, something new, then the first thing again." This is kind of like a sine oscillation, too!