Septet for clarinet, horn, bassoon, piano, violin, viola, cello : : op. 10,
Ink full score, dated 'October 1956, revised June 1973'; together with three facsimiles of same (stamped Oxford University Press), with a few annotations in pencil; and pencil sketches.
[Sonatina for clavichord or piano]: : [op. 18],
Toccata alla giga [for organ] : : [op. 37, no. 1],
Fair copy manuscript score, July 1964, together with a pencil sketch.
Three ink scores, dated 'November 1965'; 'November 1965-July 1966'; and 'November 1965 revised July 1966 S. Maria di Castellabate' respectively.
Ink score (photocopy), dated February 1984.
Bagatelles for oboe and harp : : op. 112,
Ink score, dated February 1984; and another ink version of the final movement (Vivace).
Doubles : : quintet for oboe, piano, violin, viola and cello, [op. 174],
Ink score.
Fanfare for St. Davids [?and the Fishguard Festival],
Welsh dances : : suite no. 4, [for symphonic wind band],
Ink full score (photocopy).
A photocopy of the original manuscript score, 2005; and a reproduction of another version, revised and extended by the composer [for inclusion in the compact disc, 'Music for a royal celebration', issued by the Prince's Trust].
Scores and sketches of choral music, occasionally with related material.
I send a greeting : : [a Welsh folksong arranged for unaccompanied mixed chorus],
The race of Adam : : a masque for speaker, soloists, chorus, boys' voices and orchestra, op. 23,
Ink piano score (transparencies); together with a typescript, bearing the title 'The Covenant', possibly in preparation for 'The Race of Adam'.
text arranged by W. Moelwyn Merchant.