What is the difference between composition and improvisation

The HUGE difference between Composition and Improvisation. We often hear improvisers speak about improvisation as being "spontaneous composition" or as Patrick Moraz puts it, "instant composition." And in many ways, that's true. The process of creation is similar: you open to the musical flow and see where it leads

A  documentary film  is a nonfictional motion picture intended to document some aspect of reality, primarily for the purposes of instruction, education, or maintaining a historical record.example: farenheit 911