A creation adapted from one or more pre-existing works is a derivative work and shall be protected as an independent work.

Protection of a derivative work shall not affect the copyright in the pre-existing work.

A performance by a performer of a pre-existing work or folklore shall be protected as an independent work.

Protection of a performance shall not affect the copyright in the pre-existing work.

A joint work is a work that has been completed by two or more persons where the creation of each person cannot be separately exploited.