8 (b) where the work qualifies for copyright protection only under that paragraph, only those of the authors who satisfy the requirements of that paragraph shall be taken into account for the purposes of— (i) section 10 (first ownership of copyright); (ii) section 12 to 15 (duration of copyright); and (iii) subsection (3) of section 21 (acts which do not constitute infringements). First ownership of copyright 10.—(1) The first ownership of copyright under this section shall be subject to any agreement under subsection (3) of section 11 to assign the ownership of a copyright expected to arise in the future. (2) Subject to this section, the author of a work shall be the first owner of the copyright which subsists under this Act in the work. (3) Where a work, other than a broadcast or a cable program, is— (a) made by the author in the course of his employment; or (b) made by the author on the commission of some other person; the employer or the person who commissioned the work shall be the first owner of the copyright. (4) Where a work was completed in a Convention country other than Zambia, the law of that country in relation to first ownership of copyright shall apply. Transfer of copyright 11.—(1) Copyright shall be transferable by assignment, by testamentary disposition or by operation of law. (2) An assignment of copyright may be limited by reference to— (a) one or more particular acts which the copyright owner has the exclusive right to authorise under this Act; (b) a part of the period for which the copyright subsists under this Act; or (c) a specified country or geographic area. (3) Copyright which is expected to arise in the future may be assigned. (4) An assignment of copyright shall be in writing signed by or on behalf of the assignor. Duration of Copyright Literary, musical and artistic works 12.—(1) Subject to this section, copyright in a literary, musical or artistic work or compilation shall expire at the end of the period of fifty years from the end of the calendar year in which the author dies.