If something has not been fixed in a tangible form of expression (e.g. choreographic works or improvised speeches that have not been notated or recorded) is it covered by copyright law?

Under copyright law, a work must be fixed in a tangible medium of expression to be protected. This means that if choreographic works or improvised speeches have not been notated or recorded in any way, they are not covered by copyright. Only once these works are documented in a fixed form do they gain copyright protection. Therefore, unrecorded or unnotated expressions are not eligible for copyright.