<span>A summary of the supporting points presented in the body paragraphs,</span>
"Every single thing in the world contains rhythm, or a beat, even movies. Can you imagine a world where no music was created?" That's the best I can come up with, sorry if it isn't that great.
A functional document, also known as functional specification, is a document that specifies the function that a system must perform, mostly regarded in systems engineering and software development. It typically describes what the system needs by the user, including the requested properties of inputs and outputs. It is somewhat similar to a matching requirements document.
The subordinating conjunction in the sentence is "after".
