2. Overture: The Groovy basics

Do what you think is interesting, do something that you think is fun and worthwhile, because otherwise you won’t do it well anyway.

—Brian Kernighan

This chapter follows the model of an overture in classical music, in which the initial movement introduces the audience to a musical topic. Classical composers wove euphonious patterns that, later in the performance, were revisited, extended, varied, and combined. In a way, overtures are the whole symphony en miniature.