Kenneth MacMillan created the one-act ballet Sea of Troubles for Dance Advance which premiered on 17.3.1988 at the Gardner Arts Centre at the University of Sussex. It is a distillation of Shakespeare's Hamlet and was designed by Deborah MacMillan. The material comprises:

1. One two-page typed letter from Martin D. Pring enclosing tapes of musical possibilities for the ballet, including pieces by Botislavu Martinu, Anton Webern, Alban Berg, Charles Ives and Dmitri Shostakovitch, 27Oct1987
2. One design by Deborah MacMillan for Sea of Troubles Curtain, with handwritten notes, initialled DM, on A4 paper with pencil sketch on reverse
3. One page torn from a filo-fax with a handwritten list by Deborah MacMillan of costume and prop items required for the ballet