" For writers, a beat works in a script much as a beat works in a piece of music. In a song, single beats are grouped to make up a measure. By adding more beats (thus more measures) you create a phrase, and eventually an entire melody. In the same way, single dramatic beats or moments, placed together, create a scene. And the beats in a scene, together, create the beats of an act, and the beats of an act, together, create an entire film. "

― Linda Seger , Making a Good Script Great