- C9/214.
- File
- [c.1943-1980].
Part of The Tŷ Cerdd Archive,
Typescript of 'Welsh Airs' and 'Cerddi Ysgafn' being lists of arrangements by Idris Lewis n.d.; Copy typescript of 'Original compositions, arrangements and Orchestrations held in the Music Library BBC Wales, 1980. Manuscript 'Arrangements of Welsh Airs', n.d. Letters, correspondence with words, lyrics and music relating to works including 'Yr Ysgub Olaf' (1943); 'Pen y Cei/Trai a Llanw (1943-1948); Eldorado (1947); and correspondence relating to the published works of Idris Lewis and their rights, 1952.