It is said that Delia collaborated with Ianni Christou in
1965 externally to the BBC, doing sound treatments of his orchestral music.
According to Breege Brennan's thesis, Delia collaborated with Yannis Christou, composer for Oedipus the King in 1967, and a typewritten list of recent works by Kaleidophon's members includes "Collaboration with the composer Jani Christou - 'Oedipus', Universal Films.
- ↑ 1.0 1.1 delia-derbyshire.org
- ↑ Delia Derbyshire - electronic music pioneer article at amoeba.com
- ↑ DD100926: “Recent commissions of members of the group” Kaleidophon.