Concerto for harp and orchestra : : op. 11,
- A2/6.
- Ffeil
- 1957.
Bound ink full score (facsimile), dated September 1957, with Oxford University Press label and marked 'Composer's copy'; together with pencil sketches of the second and third movements.
Rhagolwg argraffu Cau
Dangos 4 canlyniad
Disgrifiad archifol- A3/12.
- Ffeil
- 1964.
Two ink scores, both dated June 1964; and a pencil sketch.
- BA1/7.
- Ffeil
- [1954x2007].
Correspondents include Osian Ellis (5), 1956-1983; John Elwyn (8), 1976-1996; Geraint Evans, 1971.