The word 'author' is defined in Section 2(d) to mean,(i) in relation to a literary or dramatic work,the author of the work; (ii) in relation to a musical work,the composer; (iii) in relation to an artistic work other than a photograph,the artist; (iv) in relation to a photograph,the person taking the photograph; (v) in relation to a cinematograph film or sound recording,the producer; and (vi) in relation to any literary,dramatic,musical or artistic work which is computer-generated,the person who causes the work to be created