chunk: Under section 102 of the Act, copyright protection extends to "original works of authorship fixed in any tangible medium of expression, now known or later developed, from which they can be perceived, reproduced, or otherwise communicated, either directly or with the aid of a machine or device." The Act defines "works of authorship" as any of the following:
  literary works,
  musical works, including any accompanying words,
  dramatic works, including any accompanying music,
  pantomimes and choreographic works,
  pictorial, graphic, and sculptural works,
  motion pictures and other audiovisual works, and
  sound recordings.
  An eighth category, architectural works, was added in 1990.