- BA3.
- Cyfres
- 1972-1998.
Correspondence, 1972-1998, mainly relating to commissions and visits by the composer to universities in the United States and Canada.
Correspondence, 1972-1998, mainly relating to commissions and visits by the composer to universities in the United States and Canada.
A volume of press cuttings and concert programmes relating to the Pendyrus tour of the USA and Canada, October 1971, is included.