a)A derivative work might take the form of a play or a movie, while a compilation might take the form of a literary anthology or a musical medley.2)The fixation and originality requirements apply to all works described by §§102(a) and 103(a); and the prohibition on copyrighting ideas, concepts, principles, and so on, imposed by §102(a), applies just as forcefully to derivative works and compilations as it does to the works listed in §102(a). 3)§102 works typically are what might be called “first generation” works, composed essentially (although not exclusively) of materials created by their authors. Derivative works and compilations fundamentally are “second generation” works based on preexisting matter.4)The matter borrowed by the author of the derivative work or compilation may be nothing more than facts. 5)So long as the author of a derivative work or compilation incorporates preexisting matter and satisfies both the fixation and originality requirements, the work qualifies for copyright protection under §103(a). 6)§103(b): the copyright in a compilation or derivative work extends only to the material contributed by the author of such work, as distinguished from the preexisting material employed in the work, and does not imply any exclusive right in the preexisting material. The copyright in such work is independent of, and does not affect or enlarge the scope, duration, ownership, or substance of, any copyright protection in the preexisting material. 7)§103 complements §102: a compilation or derivative work is copyrightable if it represents an original work of authorship and falls within one or more of the categories listed in §102.